sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

364 files changed, 650 insertions, 650 deletions

diff --git a/sys/dev/aac/aac_cam.c b/sys/dev/aac/aac_cam.c
index 8ec26aa1080e..1b5e23083d89 100644
--- a/sys/dev/aac/aac_cam.c
+++ b/sys/dev/aac/aac_cam.c
@@ -555,7 +555,7 @@ aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb)
 			/*
 			 * Some aac(4) adapters will always report that a direct
 			 * access device is offline in response to a INQUIRY
-			 * command that does not retreive vital product data.
+			 * command that does not retrieve vital product data.
 			 * Force the qualifier to connected so that upper layers
 			 * correctly recognize that a disk is present.
 			 */
@@ -590,7 +590,7 @@ aac_cam_complete(struct aac_command *cm)
 	} else {
 		/*
 		 * The SRB error codes just happen to match the CAM error
-		 * codes.  How convienient!
+		 * codes.  How convenient!
 		 */
 		ccb->ccb_h.status = srbr->srb_status;
 
diff --git a/sys/dev/aac/aac_debug.c b/sys/dev/aac/aac_debug.c
index 353c6fa21415..6dd84f5060fd 100644
--- a/sys/dev/aac/aac_debug.c
+++ b/sys/dev/aac/aac_debug.c
@@ -351,7 +351,7 @@ aac_print_aif(struct aac_softc *sc, struct aac_aif_command *aif)
 			device_printf(sc->aac_dev, "(ClusterEvent) event %d\n",
 				      aif->data.EN.data.ECLE.eventType);
 			break;
-		case AifEnDiskSetEvent:		/* A disk set event occured. */
+		case AifEnDiskSetEvent:		/* A disk set event occurred. */
 			device_printf(sc->aac_dev, "(DiskSetEvent) event %d "
 				      "diskset %jd creator %jd\n",
 				      aif->data.EN.data.EDS.eventType,
diff --git a/sys/dev/aac/aac_disk.c b/sys/dev/aac/aac_disk.c
index 394e057acdde..89c0fa6d6738 100644
--- a/sys/dev/aac/aac_disk.c
+++ b/sys/dev/aac/aac_disk.c
@@ -88,7 +88,7 @@ DRIVER_MODULE(aacd, aac, aac_disk_driver, aac_disk_devclass, NULL, NULL);
  * Handle open from generic layer.
  *
  * This is called by the diskslice code on first open in order to get the
- * basic device geometry paramters.
+ * basic device geometry parameters.
  */
 static int
 aac_disk_open(struct disk *dp)
diff --git a/sys/dev/aac/aacreg.h b/sys/dev/aac/aacreg.h
index 99597787dcbc..70859bbff051 100644
--- a/sys/dev/aac/aacreg.h
+++ b/sys/dev/aac/aacreg.h
@@ -886,7 +886,7 @@ typedef enum {
 	AifEnSMARTEvent,		/* SMART Event */
 	AifEnBatteryNeedsRecond,	/* The battery needs reconditioning */
 	AifEnClusterEvent,		/* Some cluster event */
-	AifEnDiskSetEvent,		/* A disk set event occured. */
+	AifEnDiskSetEvent,		/* A disk set event occurred. */
 	AifEnContainerScsiEvent,	/* a container event with no. and scsi id */
 	AifEnPicBatteryEvent,	/* An event gen. by pic_battery.c for an ABM */
 	AifEnExpEvent,		/* Exp. Event Type to replace CTPopUp messages */
diff --git a/sys/dev/aacraid/aacraid_cam.c b/sys/dev/aacraid/aacraid_cam.c
index 394b67d725f8..58db62cc617d 100644
--- a/sys/dev/aacraid/aacraid_cam.c
+++ b/sys/dev/aacraid/aacraid_cam.c
@@ -1181,7 +1181,7 @@ aac_cam_complete(struct aac_command *cm)
 	} else {
 		/*
 		 * The SRB error codes just happen to match the CAM error
-		 * codes.  How convienient!
+		 * codes.  How convenient!
 		 */
 		ccb->ccb_h.status = srbr->srb_status;
 
diff --git a/sys/dev/aacraid/aacraid_debug.c b/sys/dev/aacraid/aacraid_debug.c
index 6062d72d005d..db3bab554a00 100644
--- a/sys/dev/aacraid/aacraid_debug.c
+++ b/sys/dev/aacraid/aacraid_debug.c
@@ -265,7 +265,7 @@ aacraid_print_aif(struct aac_softc *sc, struct aac_aif_command *aif)
 			device_printf(sc->aac_dev, "(ClusterEvent) event %d\n",
 				      aif->data.EN.data.ECLE.eventType);
 			break;
-		case AifEnDiskSetEvent:		/* A disk set event occured. */
+		case AifEnDiskSetEvent:		/* A disk set event occurred. */
 			device_printf(sc->aac_dev, "(DiskSetEvent) event %d "
 				      "diskset %jd creator %jd\n",
 				      aif->data.EN.data.EDS.eventType,
diff --git a/sys/dev/aacraid/aacraid_reg.h b/sys/dev/aacraid/aacraid_reg.h
index 682d4003bf37..b02d1936862a 100644
--- a/sys/dev/aacraid/aacraid_reg.h
+++ b/sys/dev/aacraid/aacraid_reg.h
@@ -875,7 +875,7 @@ typedef enum {
 	AifEnSMARTEvent, 	       	/* SMART Event */
 	AifEnBatteryNeedsRecond,	/* The battery needs reconditioning */
 	AifEnClusterEvent,		/* Some cluster event */
-	AifEnDiskSetEvent,		/* A disk set event occured. */
+	AifEnDiskSetEvent,		/* A disk set event occurred. */
 	AifEnContainerScsiEvent,	/* a container event with no. and scsi id */
 	AifEnPicBatteryEvent,	/* An event gen. by pic_battery.c for an ABM */
 	AifEnExpEvent,		/* Exp. Event Type to replace CTPopUp messages */
diff --git a/sys/dev/acpi_support/acpi_ibm.c b/sys/dev/acpi_support/acpi_ibm.c
index 735065a40400..bb9aac624d78 100644
--- a/sys/dev/acpi_support/acpi_ibm.c
+++ b/sys/dev/acpi_support/acpi_ibm.c
@@ -839,7 +839,7 @@ acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
 	case ACPI_IBM_METHOD_BRIGHTNESS:
 	case ACPI_IBM_METHOD_VOLUME:
 	case ACPI_IBM_METHOD_MUTE:
-		/* EC is required here, which was aready checked before */
+		/* EC is required here, which was already checked before */
 		return (TRUE);
 
 	case ACPI_IBM_METHOD_THINKLIGHT:
diff --git a/sys/dev/acpica/acpi.c b/sys/dev/acpica/acpi.c
index 84468e583567..326fc717d462 100644
--- a/sys/dev/acpica/acpi.c
+++ b/sys/dev/acpica/acpi.c
@@ -1965,7 +1965,7 @@ acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status)
 	     * Since we scan from \, be sure to skip system scope objects.
 	     * \_SB_ and \_TZ_ are defined in ACPICA as devices to work around
 	     * BIOS bugs.  For example, \_SB_ is to allow \_SB_._INI to be run
-	     * during the intialization and \_TZ_ is to support Notify() on it.
+	     * during the initialization and \_TZ_ is to support Notify() on it.
 	     */
 	    if (strcmp(handle_str, "\\_SB_") == 0 ||
 		strcmp(handle_str, "\\_TZ_") == 0)
diff --git a/sys/dev/acpica/acpi_cpu.c b/sys/dev/acpica/acpi_cpu.c
index 1a9c65878d91..218da4e36f68 100644
--- a/sys/dev/acpica/acpi_cpu.c
+++ b/sys/dev/acpica/acpi_cpu.c
@@ -641,7 +641,7 @@ acpi_cpu_shutdown(device_t dev)
     disable_idle(device_get_softc(dev));
 
     /*
-     * CPU devices are not truely detached and remain referenced,
+     * CPU devices are not truly detached and remain referenced,
      * so their resources are not freed.
      */
 
diff --git a/sys/dev/acpica/acpiio.h b/sys/dev/acpica/acpiio.h
index c65028f363ec..dad4287baa9a 100644
--- a/sys/dev/acpica/acpiio.h
+++ b/sys/dev/acpica/acpiio.h
@@ -64,7 +64,7 @@ struct acpi_bif {
     char model[ACPI_CMBAT_MAXSTRLEN];	/* model identifier */
     char serial[ACPI_CMBAT_MAXSTRLEN];	/* Serial number */
     char type[ACPI_CMBAT_MAXSTRLEN];	/* Type */
-    char oeminfo[ACPI_CMBAT_MAXSTRLEN];	/* OEM infomation */
+    char oeminfo[ACPI_CMBAT_MAXSTRLEN];	/* OEM information */
 };
 
 struct acpi_bst {
diff --git a/sys/dev/advansys/advansys.c b/sys/dev/advansys/advansys.c
index 1eaa9a49956c..12ffd81f884e 100644
--- a/sys/dev/advansys/advansys.c
+++ b/sys/dev/advansys/advansys.c
@@ -633,7 +633,7 @@ adv_timeout(void *arg)
 		 * means that the driver attempts to clear only one error
 		 * condition at a time.  In general, timeouts that occur
 		 * close together are related anyway, so there is no benefit
-		 * in attempting to handle errors in parrallel.  Timeouts will
+		 * in attempting to handle errors in parallel.  Timeouts will
 		 * be reinstated when the recovery process ends.
 		 */
 		adv_set_state(adv, ADV_IN_TIMEOUT);
@@ -1123,7 +1123,7 @@ adv_done(struct adv_softc *adv, union ccb *ccb, u_int done_stat,
 			 * from this initiator are in effect, but this
 			 * ignores multi-initiator setups and there is
 			 * evidence that the firmware gets its per-device
-			 * transaction counts screwed up occassionally.
+			 * transaction counts screwed up occasionally.
 			 */
 			ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
 			if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0
diff --git a/sys/dev/advansys/advlib.c b/sys/dev/advansys/advlib.c
index 9080876c5f98..75d6884b9131 100644
--- a/sys/dev/advansys/advlib.c
+++ b/sys/dev/advansys/advlib.c
@@ -2060,7 +2060,7 @@ adv_reset_bus(struct adv_softc *adv, int initiate_bus_reset)
 				 /*offset*/0, ADV_TRANS_CUR);
 	ADV_OUTW(adv, ADV_REG_PROG_COUNTER, ADV_MCODE_START_ADDR);
 
-	/* Tell the XPT layer that a bus reset occured */
+	/* Tell the XPT layer that a bus reset occurred */
 	if (adv->path != NULL)
 		xpt_async(AC_BUS_RESET, adv->path, NULL);
 
diff --git a/sys/dev/advansys/advlib.h b/sys/dev/advansys/advlib.h
index 00573ac25576..6952ca960c92 100644
--- a/sys/dev/advansys/advlib.h
+++ b/sys/dev/advansys/advlib.h
@@ -228,7 +228,7 @@ struct adv_ccb_info {
 #define		ADV_CSW_SCSI_RESET_LATCH	0x0002
 #define		ADV_CSW_INT_PENDING		0x0001
 /*
- * XXX I don't understand the relevence of the naming
+ * XXX I don't understand the relevance of the naming
  * convention change here.  What does CIW stand for?
  * Perhaps this is to differentiate read and write
  * values?
@@ -590,7 +590,7 @@ struct adv_scsiq_1 {
 	u_int8_t		target_lun;	/* LUN - taken from our xs */
 
 	u_int32_t		data_addr;	/*
-						 * physical addres of first
+						 * physical address of first
 						 * (possibly only) segment
 						 * to transfer.
 						 */
@@ -793,7 +793,7 @@ u_int16_t adv_read_lram_16(struct adv_softc *adv, u_int16_t addr);
 void	  adv_write_lram_16(struct adv_softc *adv, u_int16_t addr,
 			    u_int16_t value);
 
-/* Intialization */
+/* Initialization */
 int	  adv_find_signature(struct resource *res);
 void	  adv_lib_init(struct adv_softc *adv);
 
diff --git a/sys/dev/advansys/adwlib.h b/sys/dev/advansys/adwlib.h
index 09a015538706..a73098539f2f 100644
--- a/sys/dev/advansys/adwlib.h
+++ b/sys/dev/advansys/adwlib.h
@@ -563,7 +563,7 @@ typedef enum {
 	ADW_FENONE	  = 0x0000,
 	ADW_ULTRA	  = 0x0001,	/* Supports 20MHz Transfers */
 	ADW_ULTRA2	  = 0x0002,	/* Supports 40MHz Transfers */
-	ADW_DT		  = 0x0004,	/* Supports Double Transistion REQ/ACK*/
+	ADW_DT		  = 0x0004,	/* Supports Double Transition REQ/ACK */
 	ADW_WIDE  	  = 0x0008,	/* Wide Channel */
 	ADW_ASC3550_FE	  = ADW_ULTRA,	
 	ADW_ASC38C0800_FE = ADW_ULTRA2,
@@ -801,7 +801,7 @@ carrierbtov(struct adw_softc *adw, u_int32_t baddr)
 	return (carrierbotov(adw, baddr - adw->carrier_busbase));
 }
 
-/* Intialization */
+/* Initialization */
 int		adw_find_signature(struct adw_softc *adw);
 void		adw_reset_chip(struct adw_softc *adw);
 int		adw_reset_bus(struct adw_softc *adw);
diff --git a/sys/dev/aha/aha.c b/sys/dev/aha/aha.c
index f35fe4b6dbb8..1c767b6f0733 100644
--- a/sys/dev/aha/aha.c
+++ b/sys/dev/aha/aha.c
@@ -301,7 +301,7 @@ aha_probe(struct aha_softc* aha)
 	 * This really should be replaced with the esetup command, since
 	 * that appears to be more reliable.  This becomes more and more
 	 * true over time as we discover more cards that don't read the
-	 * geometry register consistantly.
+	 * geometry register consistently.
 	 */
 	if (aha->boardid <= 0x42) {
 		/* Wait 10ms before reading */
@@ -1161,7 +1161,7 @@ ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_co
 		struct ccb_hdr *ccb_h;
 		cam_status error;
 
-		/* Notify all clients that a BDR occured */
+		/* Notify all clients that a BDR occurred */
 		error = xpt_create_path(&path, /*periph*/NULL,
 		    cam_sim_path(aha->sim), accb->hccb.target,
 		    CAM_LUN_WILDCARD);
@@ -1204,7 +1204,7 @@ ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_co
 		break;
 	case AMBI_ABORT:
 	case AMBI_ERROR:
-		/* An error occured */
+		/* An error occurred */
 		if (accb->hccb.opcode < INITIATOR_CCB_WRESID)
 			csio->resid = 0;
 		else
@@ -1747,7 +1747,7 @@ ahatimeout(void *arg)
 	 * means that the driver attempts to clear only one error
 	 * condition at a time.  In general, timeouts that occur
 	 * close together are related anyway, so there is no benefit
-	 * in attempting to handle errors in parrallel.  Timeouts will
+	 * in attempting to handle errors in parallel.  Timeouts will
 	 * be reinstated when the recovery process ends.
 	 */
 	if ((accb->flags & ACCB_DEVICE_RESET) == 0) {
diff --git a/sys/dev/ahb/ahb.c b/sys/dev/ahb/ahb.c
index 21c5f655418e..1135b04bfa29 100644
--- a/sys/dev/ahb/ahb.c
+++ b/sys/dev/ahb/ahb.c
@@ -885,7 +885,7 @@ ahbintr_locked(struct ahb_softc *ahb)
 				xpt_async(AC_BUS_RESET, ahb->path, NULL);
 				break;
 			}
-			printf("Unsupported initiator selection AEN occured\n");
+			printf("Unsupported initiator selection AEN occurred\n");
 			break;
 		case INTSTAT_IMMED_OK:
 		case INTSTAT_IMMED_ERR:
@@ -1235,7 +1235,7 @@ ahbtimeout(void *arg)
 	 * means that the driver attempts to clear only one error
 	 * condition at a time.  In general, timeouts that occur
 	 * close together are related anyway, so there is no benefit
-	 * in attempting to handle errors in parrallel.  Timeouts will
+	 * in attempting to handle errors in parallel.  Timeouts will
 	 * be reinstated when the recovery process ends.
 	 */
 	if ((ecb->state & ECB_DEVICE_RESET) == 0) {
diff --git a/sys/dev/ahb/ahbreg.h b/sys/dev/ahb/ahbreg.h
index 23501eef5a6a..dabf409a3d8f 100644
--- a/sys/dev/ahb/ahbreg.h
+++ b/sys/dev/ahb/ahbreg.h
@@ -64,7 +64,7 @@
 #define		RSTBUS			0x10
 
 #define	BUSDEF				0x0C4
-#define		B0uS			0x00	/* give up bus immediatly */
+#define		B0uS			0x00	/* give up bus immediately */
 #define		B4uS			0x01	/* delay 4uSec. */
 #define		B8uS			0x02	/* delay 8uSec. */
 
diff --git a/sys/dev/ahci/ahci.c b/sys/dev/ahci/ahci.c
index 9a47f3b46871..d1d3d6b04ab9 100644
--- a/sys/dev/ahci/ahci.c
+++ b/sys/dev/ahci/ahci.c
@@ -1303,7 +1303,7 @@ ahci_ch_intr_main(struct ahci_channel *ch, uint32_t istatus)
 		err = 0;
 		port = -1;
 	}
-	/* Complete all successfull commands. */
+	/* Complete all successful commands. */
 	ok = ch->rslots & ~cstatus;
 	for (i = 0; i < ch->numslots; i++) {
 		if ((ok >> i) & 1)
diff --git a/sys/dev/ahci/ahci.h b/sys/dev/ahci/ahci.h
index 868a3768ca29..e2a1cafd2017 100644
--- a/sys/dev/ahci/ahci.h
+++ b/sys/dev/ahci/ahci.h
@@ -444,7 +444,7 @@ struct ahci_channel {
 	int			numtslotspd[16];/* Number of tagged slots per dev */
 	int			numhslots;	/* Number of held slots */
 	int			recoverycmd;	/* Our READ LOG active */
-	int			fatalerr;	/* Fatal error happend */
+	int			fatalerr;	/* Fatal error happened */
 	int			resetting;	/* Hard-reset in progress. */
 	int			resetpolldiv;	/* Hard-reset poll divider. */
 	int			listening;	/* SUD bit is cleared. */
@@ -465,7 +465,7 @@ struct ahci_enclosure {
 	device_t		dev;            /* Device handle */
 	struct resource		*r_memc;	/* Control register */
 	struct resource		*r_memt;	/* Transmit buffer */
-	struct resource		*r_memr;	/* Recieve buffer */
+	struct resource		*r_memr;	/* Receive buffer */
 	struct cam_sim		*sim;
 	struct cam_path		*path;
 	struct mtx		mtx;		/* state lock */
diff --git a/sys/dev/alpm/alpm.c b/sys/dev/alpm/alpm.c
index 53b2f9d885cc..428ea69a3eb5 100644
--- a/sys/dev/alpm/alpm.c
+++ b/sys/dev/alpm/alpm.c
@@ -202,7 +202,7 @@ alpm_attach(device_t dev)
 			printf(" 55K");
 			break;
 		default:
-			printf("unkown");
+			printf("unknown");
 			break;
 		}
 		printf("\n");
diff --git a/sys/dev/altera/atse/if_atse.c b/sys/dev/altera/atse/if_atse.c
index 5e37ad294030..f5a461b0afc3 100644
--- a/sys/dev/altera/atse/if_atse.c
+++ b/sys/dev/altera/atse/if_atse.c
@@ -146,7 +146,7 @@ a_onchip_fifo_mem_core_read(struct resource *res, uint32_t off,
 	return (val4);
 }
 
-/* The FIFO does an endian convertion, so we must not do it as well. */
+/* The FIFO does an endian conversion, so we must not do it as well. */
 /* XXX-BZ in fact we should do a htobe32 so le would be fine as well? */
 #define	ATSE_TX_DATA_WRITE(sc, val4)					\
 	bus_write_4((sc)->atse_tx_mem_res, A_ONCHIP_FIFO_MEM_CORE_DATA, val4)
@@ -169,8 +169,8 @@ a_onchip_fifo_mem_core_read(struct resource *res, uint32_t off,
 	    A_ONCHIP_FIFO_MEM_CORE_STATUS_REG_FILL_LEVEL,		\
 	    "RX_FILL", __func__, __LINE__)
 
-/* The FIFO does an endian convertion, so we must not do it as well. */
-/* XXX-BZ in fact we shoudl do a htobe32 so le would be fine as well? */
+/* The FIFO does an endian conversion, so we must not do it as well. */
+/* XXX-BZ in fact we should do a htobe32 so le would be fine as well? */
 #define	ATSE_RX_DATA_READ(sc)						\
 	bus_read_4((sc)->atse_rx_mem_res, A_ONCHIP_FIFO_MEM_CORE_DATA)
 #define	ATSE_RX_META_READ(sc)						\
diff --git a/sys/dev/amr/amr.c b/sys/dev/amr/amr.c
index 16cbeec35e31..09d47f725458 100644
--- a/sys/dev/amr/amr.c
+++ b/sys/dev/amr/amr.c
@@ -525,7 +525,7 @@ shutdown_out:
 /*
  * Bug-for-bug compatibility with Linux!
  * Some apps will send commands with inlen and outlen set to 0,
- * even though they expect data to be transfered to them from the
+ * even though they expect data to be transferred to them from the
  * card.  Linux accidentally allows this by allocating a 4KB
  * buffer for the transfer anyways, but it then throws it away
  * without copying it back to the app.
@@ -1784,7 +1784,7 @@ amr_start(struct amr_command *ac)
     /* Now we have a slot, we can map the command (unmapped in amr_complete). */
     if ((error = amr_mapcmd(ac)) == ENOMEM) {
 	/*
-	 * Memroy resources are short, so free the slot and let this be tried
+	 * Memory resources are short, so free the slot and let this be tried
 	 * later.
 	 */
 	amr_freeslot(ac);
diff --git a/sys/dev/an/if_an.c b/sys/dev/an/if_an.c
index 1f37b59dbf74..a85136bf3a70 100644
--- a/sys/dev/an/if_an.c
+++ b/sys/dev/an/if_an.c
@@ -426,7 +426,7 @@ int an_alloc_memory(device_t dev, int rid, int size)
 }
 
 /*
- * Allocate a auxilary memory resource with the given resource id.
+ * Allocate a auxiliary memory resource with the given resource id.
  */
 int an_alloc_aux_memory(device_t dev, int rid, int size)
 {
diff --git a/sys/dev/an/if_anreg.h b/sys/dev/an/if_anreg.h
index 279e65b8e1e0..0004e8e66e45 100644
--- a/sys/dev/an/if_anreg.h
+++ b/sys/dev/an/if_anreg.h
@@ -276,7 +276,7 @@ struct an_reply {
 #define AN_EV_ALLOC		0x0008	/* async alloc/reclaim completed */
 #define AN_EV_TX_CPY		0x0400
 #define AN_EV_TX_EXC		0x0004	/* async xmit completed with failure */
-#define AN_EV_TX		0x0002	/* async xmit completed succesfully */
+#define	AN_EV_TX		0x0002	/* async xmit completed successfully */
 #define AN_EV_RX		0x0001	/* async rx completed */
 
 #define AN_INTRS(x)	\
diff --git a/sys/dev/asmc/asmc.c b/sys/dev/asmc/asmc.c
index f69f77dc55a4..bbe8bfd41559 100644
--- a/sys/dev/asmc/asmc.c
+++ b/sys/dev/asmc/asmc.c
@@ -650,7 +650,7 @@ asmc_init(device_t dev)
 		goto nosms;
 
 	/*
-	 * We are ready to recieve interrupts from the SMS.
+	 * We are ready to receive interrupts from the SMS.
 	 */
 	buf[0] = 0x01;
 	ASMC_DPRINTF(("intok key\n"));
diff --git a/sys/dev/ata/ata-all.c b/sys/dev/ata/ata-all.c
index 8e7ca081d82f..889c37b5ef25 100644
--- a/sys/dev/ata/ata-all.c
+++ b/sys/dev/ata/ata-all.c
@@ -426,7 +426,7 @@ ata_default_registers(device_t dev)
 void
 ata_udelay(int interval)
 {
-    /* for now just use DELAY, the timer/sleep subsytems are not there yet */
+    /* for now just use DELAY, the timer/sleep subsystems are not there yet */
     if (1 || interval < (1000000/hz) || ata_delayed_attach)
 	DELAY(interval);
     else
diff --git a/sys/dev/ata/ata-sata.c b/sys/dev/ata/ata-sata.c
index c31175d8c9f6..2df5cb53d5c9 100644
--- a/sys/dev/ata/ata-sata.c
+++ b/sys/dev/ata/ata-sata.c
@@ -297,7 +297,7 @@ ata_pm_identify(device_t dev)
 
     /* get PM revision data */
     if (ch->hw.pm_read(dev, ATA_PM, 1, &pm_revision)) {
-	device_printf(dev, "error getting PM revison data\n");
+	device_printf(dev, "error getting PM revision data\n");
 	return;
     }
 
diff --git a/sys/dev/ata/chipsets/ata-ite.c b/sys/dev/ata/chipsets/ata-ite.c
index f204e7a44bb3..44370de9ec4b 100644
--- a/sys/dev/ata/chipsets/ata-ite.c
+++ b/sys/dev/ata/chipsets/ata-ite.c
@@ -103,7 +103,7 @@ ata_ite_chipinit(device_t dev)
 	pci_write_config(dev, 0x56, 0x31, 1);
 
 	ctlr->setmode = ata_ite_821x_setmode;
-	/* No timing restrictions initally. */
+	/* No timing restrictions initially. */
 	ctlr->chipset_data = NULL;
     }
     ctlr->ch_attach = ata_ite_ch_attach;
diff --git a/sys/dev/atkbdc/psm.c b/sys/dev/atkbdc/psm.c
index b5c4856a4b8e..56a5c62bae6d 100644
--- a/sys/dev/atkbdc/psm.c
+++ b/sys/dev/atkbdc/psm.c
@@ -1807,7 +1807,7 @@ psmread(struct cdev *dev, struct uio *uio, int flag)
 	if ((sc->state & PSM_VALID) == 0)
 		return (EIO);
 
-	/* block until mouse activity occured */
+	/* block until mouse activity occurred */
 	s = spltty();
 	while (sc->queue.count <= 0) {
 		if (dev != sc->bdev) {
@@ -3008,7 +3008,7 @@ proc_synaptics(struct psm_softc *sc, packetbuf_t *pb, mousestatus_t *ms,
 		if (synaction->queue_len < synaction->window_min)
 			goto SYNAPTICS_END;
 
-		/* Is a scrolling action occuring? */
+		/* Is a scrolling action occurring? */
 		if (!synaction->in_taphold && !synaction->in_vscroll) {
 			/*
 			 * A scrolling action must not conflict with a tap
@@ -3518,7 +3518,7 @@ psmsoftintr(void *arg)
 
 		case MOUSE_MODEL_NETSCROLL:
 			/*
-			 * three addtional bytes encode buttons and
+			 * three additional bytes encode buttons and
 			 * wheel events
 			 */
 			ms.button |= (pb->ipacket[3] & MOUSE_PS2_BUTTON3DOWN) ?
diff --git a/sys/dev/bce/if_bce.c b/sys/dev/bce/if_bce.c
index cfc091fa80ac..0b406e23cb71 100644
--- a/sys/dev/bce/if_bce.c
+++ b/sys/dev/bce/if_bce.c
@@ -2361,7 +2361,7 @@ bce_nvram_erase_page(struct bce_softc *sc, u32 offset)
 	    BCE_NVM_COMMAND_DOIT;
 
 	/*
-	 * Clear the DONE bit separately, set the NVRAM adress to erase,
+	 * Clear the DONE bit separately, set the NVRAM address to erase,
 	 * and issue the erase command.
 	 */
 	REG_WR(sc, BCE_NVM_COMMAND, BCE_NVM_COMMAND_DONE);
@@ -7957,7 +7957,7 @@ bce_intr(void *xsc)
 		goto bce_intr_exit;
 	}
 
-	/* Ack the interrupt and stop others from occuring. */
+	/* Ack the interrupt and stop others from occurring. */
 	REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
 	    BCE_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
 	    BCE_PCICFG_INT_ACK_CMD_MASK_INT);
diff --git a/sys/dev/bce/if_bcereg.h b/sys/dev/bce/if_bcereg.h
index 8ed58d58130c..2f166eadea7c 100644
--- a/sys/dev/bce/if_bcereg.h
+++ b/sys/dev/bce/if_bcereg.h
@@ -6089,7 +6089,7 @@ struct l2_fhdr {
 /****************************************************************************/
 /* The following definitions refer to pre-defined locations in processor    */
 /* memory space which allows the driver to enable particular functionality  */
-/* within the firmware or read specfic information about the running        */
+/* within the firmware or read specific information about the running        */
 /* firmware.                                                                */
 /****************************************************************************/
 
@@ -6174,7 +6174,7 @@ struct l2_fhdr {
 #define RX_IDX(x) ((x) & USABLE_RX_BD_PER_PAGE)
 
 /*
- * To accomodate jumbo frames, the page chain should
+ * To accommodate jumbo frames, the page chain should
  * be 4 times larger than the receive chain.
  */
 #define DEFAULT_PG_PAGES		(DEFAULT_RX_PAGES * 4)
diff --git a/sys/dev/bhnd/bcmsrom_fmt.h b/sys/dev/bhnd/bcmsrom_fmt.h
index 10f00e497630..66c2b9dd1a60 100644
--- a/sys/dev/bhnd/bcmsrom_fmt.h
+++ b/sys/dev/bhnd/bcmsrom_fmt.h
@@ -311,7 +311,7 @@
 /* SISO PA parameters are in the path0 spaces */
 #define	SROM8_SISO		96
 
-/* Legacy names for SISO PA paramters */
+/* Legacy names for SISO PA parameters */
 #define	SROM8_W0_ITTMAXP	(SROM8_SISO + SROM8_2G_ITT_MAXP)
 #define	SROM8_W0_PAB0		(SROM8_SISO + SROM8_2G_PA)
 #define	SROM8_W0_PAB1		(SROM8_SISO + SROM8_2G_PA + 1)
diff --git a/sys/dev/bhnd/bhnd.h b/sys/dev/bhnd/bhnd.h
index 5a3e9926f00c..758955695650 100644
--- a/sys/dev/bhnd/bhnd.h
+++ b/sys/dev/bhnd/bhnd.h
@@ -449,7 +449,7 @@ bhnd_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
  * BHND_BUS_ALLOC_RESOURCE.
  * 
  * @retval 0 success
- * @retval non-zero an error occured while activating the resource.
+ * @retval non-zero an error occurred while activating the resource.
  */
 static inline int
 bhnd_activate_resource(device_t dev, int type, int rid,
@@ -469,7 +469,7 @@ bhnd_activate_resource(device_t dev, int type, int rid,
  * BHND_BUS_ALLOC_RESOURCE.
  * 
  * @retval 0 success
- * @retval non-zero an error occured while activating the resource.
+ * @retval non-zero an error occurred while activating the resource.
  */
 static inline int
 bhnd_deactivate_resource(device_t dev, int type, int rid,
@@ -489,7 +489,7 @@ bhnd_deactivate_resource(device_t dev, int type, int rid,
  * BHND_ALLOC_RESOURCE.
  * 
  * @retval 0 success
- * @retval non-zero an error occured while activating the resource.
+ * @retval non-zero an error occurred while activating the resource.
  */
 static inline int
 bhnd_release_resource(device_t dev, int type, int rid,
diff --git a/sys/dev/bhnd/bhnd_ids.h b/sys/dev/bhnd/bhnd_ids.h
index fdbc6ff7502d..e28e53b44dc0 100644
--- a/sys/dev/bhnd/bhnd_ids.h
+++ b/sys/dev/bhnd/bhnd_ids.h
@@ -421,14 +421,14 @@
 #define	BHND_PKGID_BCM4314PCIE		(8 | 2)		/* 4314 QFN PCI (ARM-less) package id */
 #define	BHND_PKGID_BCM4314SDIO_ARM	(8 | 3)		/* 4314 QFN SDIO (ARM-less) package id */
 #define	BHND_PKGID_BCM4314SDIO_FPBGA	(8 | 4)		/* 4314 FpBGA SDIO package id */
-#define	BHND_PKGID_BCM4314DEV		(8 | 6)		/* 4314 Developement package id */
+#define	BHND_PKGID_BCM4314DEV		(8 | 6)		/* 4314 Development package id */
 
 #define	BHND_PKGID_BCM4707		1		/* 4707 package id */
 #define	BHND_PKGID_BCM4708		2		/* 4708 package id */
 #define	BHND_PKGID_BCM4709		0		/* 4709 package id */
 
 #define	BHND_PKGID_BCM4335_WLCSP	(0x0)		/* WLCSP Module/Mobile SDIO/HSIC. */
-#define	BHND_PKGID_BCM4335_FCBGA	(0x1)		/* FCBGA PC/Embeded/Media PCIE/SDIO */
+#define	BHND_PKGID_BCM4335_FCBGA	(0x1)		/* FCBGA PC/Embedded/Media PCIE/SDIO */
 #define	BHND_PKGID_BCM4335_WLBGA	(0x2)		/* WLBGA COB/Mobile SDIO/HSIC. */
 #define	BHND_PKGID_BCM4335_FCBGAD	(0x3)		/* FCBGA Debug Debug/Dev All if's. */
 #define	BHND_PKGID_PKG_MASK_BCM4335	(0x3)
@@ -645,8 +645,8 @@
 #define	BHND_BFL3_RCAL_WAR			0x00000008	/* acphy, rcal war active on this board (4335a0) */
 #define	BHND_BFL3_TXGAINTBLID			0x00000070	/* acphy, txgain table id */
 #define	BHND_BFL3_TXGAINTBLID_SHIFT		0x4		/* acphy, txgain table id shift bit */
-#define	BHND_BFL3_TSSI_DIV_WAR			0x00000080	/* acphy, Seperate paparam for 20/40/80 */
-#define	BHND_BFL3_TSSI_DIV_WAR_SHIFT		0x7		/* acphy, Seperate paparam for 20/40/80 shift bit */
+#define	BHND_BFL3_TSSI_DIV_WAR			0x00000080	/* acphy, Separate paparam for 20/40/80 */
+#define	BHND_BFL3_TSSI_DIV_WAR_SHIFT		0x7		/* acphy, Separate paparam for 20/40/80 shift bit */
 #define	BHND_BFL3_FEMTBL_FROM_NVRAM		0x00000100	/* acphy, femctrl table is read from nvram */
 #define	BHND_BFL3_FEMTBL_FROM_NVRAM_SHIFT	0x8		/* acphy, femctrl table is read from nvram */
 #define	BHND_BFL3_AGC_CFG_2G			0x00000200	/* acphy, gain control configuration for 2G */
diff --git a/sys/dev/bhnd/bhndb/bhndb.c b/sys/dev/bhnd/bhndb/bhndb.c
index f63538431a5d..3deae0024638 100644
--- a/sys/dev/bhnd/bhndb/bhndb.c
+++ b/sys/dev/bhnd/bhndb/bhndb.c
@@ -1515,7 +1515,7 @@ bhndb_get_resource_list(device_t dev, device_t child)
  * Default bhndb(4) implementation of BHND_BUS_ACTIVATE_RESOURCE().
  *
  * For BHNDB_ADDRSPACE_NATIVE children, all resources may be assumed to
- * be actived by the bridge.
+ * be activated by the bridge.
  * 
  * For BHNDB_ADDRSPACE_BRIDGED children, attempts to activate a static register
  * window, a dynamic register window, or configures @p r as an indirect
diff --git a/sys/dev/bhnd/bhndb/bhndb_hwdata.c b/sys/dev/bhnd/bhndb/bhndb_hwdata.c
index dd973e96b3ba..7cbb21fbf6d2 100644
--- a/sys/dev/bhnd/bhndb/bhndb_hwdata.c
+++ b/sys/dev/bhnd/bhndb/bhndb_hwdata.c
@@ -130,7 +130,7 @@ const struct bhndb_hw_priority bhndb_bcma_priority_table[] = {
 	/*
 	 * Default Core Behavior
 	 * 
-	 * All other cores are assumed to require effecient runtime access to
+	 * All other cores are assumed to require efficient runtime access to
 	 * the default device port, and if supported by the bus, an agent port.
 	 */
 	BHNDB_CLASS_PRIO(INVALID,	-1,	DEFAULT,
@@ -183,7 +183,7 @@ const struct bhndb_hw_priority bhndb_siba_priority_table[] = {
 	/*
 	 * Default Core Behavior
 	 * 
-	 * All other cores are assumed to require effecient runtime access to
+	 * All other cores are assumed to require efficient runtime access to
 	 * the device port.
 	 */
 	BHNDB_CLASS_PRIO(INVALID,	-1,	DEFAULT,
diff --git a/sys/dev/bhnd/siba/siba.c b/sys/dev/bhnd/siba/siba.c
index 9e837e3fbc5e..4e0c34ac63b0 100644
--- a/sys/dev/bhnd/siba/siba.c
+++ b/sys/dev/bhnd/siba/siba.c
@@ -420,7 +420,7 @@ siba_register_addrspaces(device_t dev, struct siba_devinfo *di,
 
 	/* Region numbers must be assigned in order, but our siba address
 	 * space IDs may be sparsely allocated; thus, we track
-	 * the region index seperately. */
+	 * the region index separately. */
 	region_num = 0;
 
 	/* Register the device address space entries */
diff --git a/sys/dev/bhnd/siba/siba_subr.c b/sys/dev/bhnd/siba/siba_subr.c
index 5e9b028951c6..555c6034d4ea 100644
--- a/sys/dev/bhnd/siba/siba_subr.c
+++ b/sys/dev/bhnd/siba/siba_subr.c
@@ -337,7 +337,7 @@ siba_admatch_offset(uint8_t addrspace)
  * @param[out] size The parsed size.
  * 
  * @retval 0 success
- * @retval non-zero a parse error occured.
+ * @retval non-zero a parse error occurred.
  */
 int
 siba_parse_admatch(uint32_t am, uint32_t *addr, uint32_t *size)
diff --git a/sys/dev/bktr/CHANGELOG.TXT b/sys/dev/bktr/CHANGELOG.TXT
index 5cd1929ed696..bead697f04d0 100644
--- a/sys/dev/bktr/CHANGELOG.TXT
+++ b/sys/dev/bktr/CHANGELOG.TXT
@@ -356,7 +356,7 @@
                     BSDI code removed. Will be restored later.
 
 1.70   12 July 1999 Roger Hardiman <roger@freebsd.org>
-                    Reorganise OS device dependant parts (based on a port to
+                    Reorganise OS device dependent parts (based on a port to
                     linux by Brad Parker).
                     Make the driver compile on FreeBSD 2.2.x systems again.
                     Change number of VBI lines from 16 to 12 for NTSC formats.
@@ -368,7 +368,7 @@
                     Matt Brown <matt@dqc.org> added MSP3430G DBX initialisation.
 
 1.71    30 Aug 1999 Roger Hardiman <roger@freebsd.org>
-                    Small cleanup of OS dependant code. Remove NPCI usage.
+                    Small cleanup of OS dependent code. Remove NPCI usage.
                     Fix bug in AVerMedia detection.
 		    Update VBI support for the AleVT Teletext package. Parts
                     from Juha Nurmela's driver <Juha.Nurmela@quicknet.inet.fi>
diff --git a/sys/dev/bktr/bktr_audio.c b/sys/dev/bktr/bktr_audio.c
index 6cfe5769e2d4..ea2b45869444 100644
--- a/sys/dev/bktr/bktr_audio.c
+++ b/sys/dev/bktr/bktr_audio.c
@@ -132,7 +132,7 @@ set_audio( bktr_ptr_t bktr, int cmd )
 	else
 #endif /* AUDIOMUX_DISCOVER */
 
-	/* check for existance of audio MUXes */
+	/* check for existence of audio MUXes */
 	if ( !bktr->card.audiomuxs[ 4 ] )
 		return( -1 );
 
@@ -308,7 +308,7 @@ init_BTSC( bktr_ptr_t bktr )
 
 /*
  * setup the dbx chip
- * XXX FIXME: alot of work to be done here, this merely unmutes it.
+ * XXX FIXME: a lot of work to be done here, this merely unmutes it.
  */
 int
 set_BTSC( bktr_ptr_t bktr, int control )
@@ -471,7 +471,7 @@ void msp_read_id( bktr_ptr_t bktr ){
  * For the MSP3430G, we use fast autodetect mode
  * For the MSP3410/3415 there are two schemes for this
  *  a) Fast autodetection - the chip is put into autodetect mode, and the function
- *     returns immediatly. This works in most cases and is the Default Mode.
+ *     returns immediately. This works in most cases and is the Default Mode.
  *  b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from 
  *     the chip and re-programs it if needed.
  */
@@ -561,7 +561,7 @@ void msp_autodetect( bktr_ptr_t bktr ) {
         msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/
         /*
           set spatial effect strength to 50% enlargement
-          set spatial effect mode b, stereo basewidth enlargment only
+          set spatial effect mode b, stereo basewidth enlargement only
         */
         msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28);
       } else if (stereo > 0x8000) {    /* bilingual mode */
@@ -573,7 +573,7 @@ void msp_autodetect( bktr_ptr_t bktr ) {
         msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */
         /*
           set spatial effect strength to 50% enlargement
-          set spatial effect mode a, stereo basewidth enlargment
+          set spatial effect mode a, stereo basewidth enlargement
           and pseudo stereo effect with automatic high-pass filter
         */
         msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08);
diff --git a/sys/dev/bktr/bktr_card.c b/sys/dev/bktr/bktr_card.c
index e59ebbef06bf..be76fb304d46 100644
--- a/sys/dev/bktr/bktr_card.c
+++ b/sys/dev/bktr/bktr_card.c
@@ -1217,7 +1217,7 @@ checkTuner:
 	} /* end switch(card) */
 
 
-	/* At this point, a goto checkDBX has not occured */
+	/* At this point, a goto checkDBX has not occurred */
 	/* We have not been able to select a Tuner */
 	/* Some cards make use of the tuner address to */
 	/* identify the make/model of tuner */
diff --git a/sys/dev/bktr/bktr_core.c b/sys/dev/bktr/bktr_core.c
index 67f3ab1896f0..e069778da185 100644
--- a/sys/dev/bktr/bktr_core.c
+++ b/sys/dev/bktr/bktr_core.c
@@ -256,7 +256,7 @@ typedef u_char bool_t;
  */
 
 #define MAX_VBI_LINES	      16   /* Maximum for all vidoe formats */
-#define VBI_LINE_SIZE         2048 /* Store upto 2048 bytes per line */
+#define	VBI_LINE_SIZE         2048 /* Store up to 2048 bytes per line */
 #define VBI_BUFFER_ITEMS      20   /* Number of frames we buffer */
 #define VBI_DATA_SIZE         (VBI_LINE_SIZE * MAX_VBI_LINES * 2)
 #define VBI_BUFFER_SIZE       (VBI_DATA_SIZE * VBI_BUFFER_ITEMS)
@@ -626,7 +626,7 @@ bktr_store_address(unit, BKTR_MEM_BUF,          buf);
 	init_audio_devices( bktr );
 
 #ifdef BKTR_NEW_MSP34XX_DRIVER
-	/* setup the kenrel thread */
+	/* setup the kernel thread */
 	err = msp_attach( bktr );
 	if ( err != 0 ) /* error doing kernel thread stuff, disable msp3400c */
 		bktr->card.msp3400c = 0;
@@ -1786,7 +1786,7 @@ video_ioctl( bktr_ptr_t bktr, int unit, ioctl_cmd_t cmd, caddr_t arg, struct thr
 			    && bktr->video.addr == 0) {
 
 /*****************************/
-/* *** OS Dependant code *** */
+/* *** OS Dependent code *** */
 /*****************************/
 #if defined(__NetBSD__) || defined(__OpenBSD__)
                                 bus_dmamap_t dmamap;
@@ -2369,7 +2369,7 @@ common_ioctl( bktr_ptr_t bktr, ioctl_cmd_t cmd, caddr_t arg )
 		/*   Tuner is MUX0, RCA is MUX1, S-Video is MUX2 */
 		/* On the Hauppauge bt878 boards, */
 		/*   Tuner is MUX0, RCA is MUX3 */
-		/* Unfortunatly Meteor driver codes DEV_RCA as DEV_0, so we */
+		/* Unfortunately Meteor driver codes DEV_RCA as DEV_0, so we */
 		/* stick with this system in our Meteor Emulation */
 
 		switch(*(unsigned long *)arg & METEOR_DEV_MASK) {
diff --git a/sys/dev/bktr/bktr_os.c b/sys/dev/bktr/bktr_os.c
index e8c0f7bc8418..aa41454f0cab 100644
--- a/sys/dev/bktr/bktr_os.c
+++ b/sys/dev/bktr/bktr_os.c
@@ -40,7 +40,7 @@ __FBSDID("$FreeBSD$");
  * chipset.
  * Copyright Roger Hardiman and Amancio Hasty.
  *
- * bktr_os : This has all the Operating System dependant code,
+ * bktr_os : This has all the Operating System dependent code,
  *             probe/attach and open/close/ioctl/read/mmap
  *             memory allocation
  *             PCI bus interfacing
@@ -395,12 +395,12 @@ bktr_attach( device_t dev )
         fun = fun | 1;	/* Enable writes to the sub-system vendor ID */
 
 #if defined( BKTR_430_FX_MODE )
-	if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n");
+	if (bootverbose) printf("Using 430 FX chipset compatibility mode\n");
         fun = fun | 2;	/* Enable Intel 430 FX compatibility mode */
 #endif
 
 #if defined( BKTR_SIS_VIA_MODE )
-	if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n");
+	if (bootverbose) printf("Using SiS/VIA chipset compatibility mode\n");
         fun = fun | 4;	/* Enable SiS/VIA compatibility mode (useful for
                            OPTi chipset motherboards too */
 #endif
diff --git a/sys/dev/bktr/bktr_os.h b/sys/dev/bktr/bktr_os.h
index 1cd708df3c6a..6456616be281 100644
--- a/sys/dev/bktr/bktr_os.h
+++ b/sys/dev/bktr/bktr_os.h
@@ -6,7 +6,7 @@
  * chipset.
  * Copyright Roger Hardiman and Amancio Hasty.
  *
- * bktr_os : This has all the Operating System dependant code.
+ * bktr_os : This has all the Operating System dependent code.
  *
  */
 
diff --git a/sys/dev/bktr/msp34xx.c b/sys/dev/bktr/msp34xx.c
index 65cf0e109c46..8c45e6723a97 100644
--- a/sys/dev/bktr/msp34xx.c
+++ b/sys/dev/bktr/msp34xx.c
@@ -39,7 +39,7 @@
  *
  *  FM-Mono
  *      should work. The stereo modes are backward compatible to FM-mono,
- *      therefore FM-Mono should be allways available.
+ *      therefore FM-Mono should be always available.
  *
  *  FM-Stereo (B/G, used in germany)
  *      should work, with autodetect
@@ -226,7 +226,7 @@ static struct MSP_INIT_DATA_DEM {
 	  MSP_CARRIER(10.7), MSP_CARRIER(10.7),
 	  0x00d0, 0x0480, 0x0020, 0x3000 },
 
-	/* Terrestial FM-mono + FM-stereo */
+	/* Terrestrial FM-mono + FM-stereo */
 	{ {  3, 18, 27, 48, 66, 72 }, {  3, 18, 27, 48, 66, 72 },
 	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 	  0x00d0, 0x0480,   0x0030, 0x3000},
diff --git a/sys/dev/buslogic/bt.c b/sys/dev/buslogic/bt.c
index 5276051c2494..b0a0d919a60e 100644
--- a/sys/dev/buslogic/bt.c
+++ b/sys/dev/buslogic/bt.c
@@ -1578,7 +1578,7 @@ btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code)
 		struct ccb_hdr *ccb_h;
 		cam_status error;
 
-		/* Notify all clients that a BDR occured */
+		/* Notify all clients that a BDR occurred */
 		error = xpt_create_path(&path, /*periph*/NULL,
 					cam_sim_path(bt->sim),
 					bccb->hccb.target_id,
@@ -1624,12 +1624,12 @@ btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code)
 	case BMBI_ABORT:
 	case BMBI_ERROR:
 		if (bootverbose) {
-			printf("bt: ccb %p - error %x occured.  "
+			printf("bt: ccb %p - error %x occurred.  "
 			       "btstat = %x, sdstat = %x\n",
 			       (void *)bccb, comp_code, bccb->hccb.btstat,
 			       bccb->hccb.sdstat);
 		}
-		/* An error occured */
+		/* An error occurred */
 		switch(bccb->hccb.btstat) {
 		case BTSTAT_DATARUN_ERROR:
 			if (bccb->hccb.data_len == 0) {
@@ -2317,7 +2317,7 @@ bttimeout(void *arg)
 	 * means that the driver attempts to clear only one error
 	 * condition at a time.  In general, timeouts that occur
 	 * close together are related anyway, so there is no benefit
-	 * in attempting to handle errors in parrallel.  Timeouts will
+	 * in attempting to handle errors in parallel.  Timeouts will
 	 * be reinstated when the recovery process ends.
 	 */
 	if ((bccb->flags & BCCB_DEVICE_RESET) == 0) {
diff --git a/sys/dev/buslogic/bt_eisa.c b/sys/dev/buslogic/bt_eisa.c
index 6a61d7a21f8b..e68d2f77be28 100644
--- a/sys/dev/buslogic/bt_eisa.c
+++ b/sys/dev/buslogic/bt_eisa.c
@@ -78,7 +78,7 @@ __FBSDID("$FreeBSD$");
 #define EISA_IRQ_TYPE                   0x08D
 #define       LEVEL                     0x40
 
-/* Definitions for the AMI Series 48 controler */
+/* Definitions for the AMI Series 48 controller */
 #define	AMI_EISA_IOSIZE			0x500	/* Two separate ranges?? */
 #define	AMI_EISA_SLOT_OFFSET		0x800
 #define	AMI_EISA_IOCONF			0x000
diff --git a/sys/dev/bwi/if_bwi.c b/sys/dev/bwi/if_bwi.c
index 2bb5f8af3aba..45706e8853d7 100644
--- a/sys/dev/bwi/if_bwi.c
+++ b/sys/dev/bwi/if_bwi.c
@@ -3747,7 +3747,7 @@ bwi_rx_radiotap(struct bwi_softc *sc, struct mbuf *m,
 	if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED)
 		sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_WEP;
 
-	sc->sc_rx_th.wr_tsf = hdr->rxh_tsf; /* No endian convertion */
+	sc->sc_rx_th.wr_tsf = hdr->rxh_tsf; /* No endian conversion */
 	sc->sc_rx_th.wr_rate = rate;
 	sc->sc_rx_th.wr_antsignal = rssi;
 	sc->sc_rx_th.wr_antnoise = noise;
diff --git a/sys/dev/bxe/bxe.c b/sys/dev/bxe/bxe.c
index 170d1579d801..3b5ab1770c90 100644
--- a/sys/dev/bxe/bxe.c
+++ b/sys/dev/bxe/bxe.c
@@ -2221,7 +2221,7 @@ storm_memset_eq_prod(struct bxe_softc *sc,
 /*
  * Post a slowpath command.
  *
- * A slowpath command is used to propogate a configuration change through
+ * A slowpath command is used to propagate a configuration change through
  * the controller in a controlled manner, allowing each STORM processor and
  * other H/W blocks to phase in the change.  The commands sent on the
  * slowpath are referred to as ramrods.  Depending on the ramrod used the
@@ -4248,7 +4248,7 @@ bxe_nic_unload(struct bxe_softc *sc,
 
     /*
      * Nothing to do during unload if previous bxe_nic_load()
-     * did not completed succesfully - all resourses are released.
+     * did not completed successfully - all resourses are released.
      */
     if ((sc->state == BXE_STATE_CLOSED) ||
         (sc->state == BXE_STATE_ERROR)) {
@@ -4762,7 +4762,7 @@ bxe_dump_mbuf(struct bxe_softc *sc,
  * Checks to ensure the 13 bd sliding window is >= MSS for TSO.
  * Check that (13 total bds - 3 bds) = 10 bd window >= MSS.
  * The window: 3 bds are = 1 for headers BD + 2 for parse BD and last BD
- * The headers comes in a seperate bd in FreeBSD so 13-3=10.
+ * The headers comes in a separate bd in FreeBSD so 13-3=10.
  * Returns: 0 if OK to send, 1 if packet needs further defragmentation
  */
 static int
@@ -7990,7 +7990,7 @@ bxe_attn_int_deasserted2(struct bxe_softc *sc,
             mask1 = REG_RD(sc, PXP2_REG_PXP2_INT_MASK_1);
             val0 = REG_RD(sc, PXP2_REG_PXP2_INT_STS_0);
             /*
-             * If the olny PXP2_EOP_ERROR_BIT is set in
+             * If the only PXP2_EOP_ERROR_BIT is set in
              * STS0 and STS1 - clear it
              *
              * probably we lose additional attentions between
@@ -10627,7 +10627,7 @@ bxe_set_234_gates(struct bxe_softc *sc,
                (!close) ? (val | HC_CONFIG_0_REG_BLOCK_DISABLE_0) :
                (val & ~(uint32_t)HC_CONFIG_0_REG_BLOCK_DISABLE_0));
     } else {
-        /* Prevent incomming interrupts in IGU */
+        /* Prevent incoming interrupts in IGU */
         val = REG_RD(sc, IGU_REG_BLOCK_CONFIGURATION);
 
         REG_WR(sc, IGU_REG_BLOCK_CONFIGURATION,
diff --git a/sys/dev/bxe/bxe_elink.c b/sys/dev/bxe/bxe_elink.c
index 0ce0433598a0..ab5bac49e05f 100644
--- a/sys/dev/bxe/bxe_elink.c
+++ b/sys/dev/bxe/bxe_elink.c
@@ -1294,7 +1294,7 @@ static void elink_ets_e3b0_set_credit_upper_bound_nig(
 *	Will return the NIG ETS registers to init values.Except
 *	credit_upper_bound.
 *	That isn't used in this configuration (No WFQ is enabled) and will be
-*	configured acording to spec
+*	configured according to spec.
 *.
 ******************************************************************************/
 static void elink_ets_e3b0_nig_disabled(const struct elink_params *params,
@@ -1411,7 +1411,7 @@ static void elink_ets_e3b0_set_credit_upper_bound_pbf(
 *	Will return the PBF ETS registers to init values.Except
 *	credit_upper_bound.
 *	That isn't used in this configuration (No WFQ is enabled) and will be
-*	configured acording to spec
+*	configured according to spec.
 *.
 ******************************************************************************/
 static void elink_ets_e3b0_pbf_disabled(const struct elink_params *params)
@@ -1469,7 +1469,7 @@ static void elink_ets_e3b0_pbf_disabled(const struct elink_params *params)
 }
 /******************************************************************************
 * Description:
-*	E3B0 disable will return basicly the values to init values.
+*	E3B0 disable will return basically the values to init values.
 *.
 ******************************************************************************/
 static elink_status_t elink_ets_e3b0_disabled(const struct elink_params *params,
@@ -1492,7 +1492,7 @@ static elink_status_t elink_ets_e3b0_disabled(const struct elink_params *params,
 
 /******************************************************************************
 * Description:
-*	Disable will return basicly the values to init values.
+*	Disable will return basically the values to init values.
 *
 ******************************************************************************/
 elink_status_t elink_ets_disabled(struct elink_params *params,
@@ -3762,7 +3762,7 @@ static elink_status_t elink_eee_initial_config(struct elink_params *params,
 {
 	vars->eee_status |= ((uint32_t) mode) << SHMEM_EEE_SUPPORTED_SHIFT;
 
-	/* Propogate params' bits --> vars (for migration exposure) */
+	/* Propagate params' bits --> vars (for migration exposure) */
 	if (params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI)
 		vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
 	else
@@ -14632,7 +14632,7 @@ static void elink_check_over_curr(struct elink_params *params,
 		vars->phy_flags &= ~PHY_OVER_CURRENT_FLAG;
 }
 
-/* Returns 0 if no change occured since last check; 1 otherwise. */
+/* Returns 0 if no change occurred since last check; 1 otherwise. */
 static uint8_t elink_analyze_link_error(struct elink_params *params,
 				    struct elink_vars *vars, uint32_t status,
 				    uint32_t phy_flag, uint32_t link_flag, uint8_t notify)
diff --git a/sys/dev/bxe/bxe_stats.c b/sys/dev/bxe/bxe_stats.c
index 03e643c0b6d4..2310e8f59eee 100644
--- a/sys/dev/bxe/bxe_stats.c
+++ b/sys/dev/bxe/bxe_stats.c
@@ -1670,7 +1670,7 @@ bxe_stats_init(struct bxe_softc *sc)
         bxe_port_stats_base_init(sc);
     }
 
-    /* mark the end of statistics initializiation */
+    /* mark the end of statistics initialization */
     sc->stats_init = FALSE;
 }
 
diff --git a/sys/dev/bxe/bxe_stats.h b/sys/dev/bxe/bxe_stats.h
index 75f0248b5e16..a0f5792f9248 100644
--- a/sys/dev/bxe/bxe_stats.h
+++ b/sys/dev/bxe/bxe_stats.h
@@ -264,7 +264,7 @@ struct bxe_eth_stats {
     uint32_t mbuf_alloc_sge;
     uint32_t mbuf_alloc_tpa;
 
-    /* num. of times tx queue full occured */
+    /* num. of times tx queue full occurred */
     uint32_t tx_queue_full_return;
 };
 
@@ -370,7 +370,7 @@ struct bxe_eth_q_stats {
     uint32_t mbuf_alloc_sge;
     uint32_t mbuf_alloc_tpa;
 
-    /* num. of times tx queue full occured */
+    /* num. of times tx queue full occurred */
     uint32_t tx_queue_full_return;
 };
 
diff --git a/sys/dev/bxe/ecore_hsi.h b/sys/dev/bxe/ecore_hsi.h
index 9ed0264cd8ce..d1924a741b03 100644
--- a/sys/dev/bxe/ecore_hsi.h
+++ b/sys/dev/bxe/ecore_hsi.h
@@ -8188,7 +8188,7 @@ union fcoe_kcqe_params
 struct fcoe_kcqe
 {
 	uint32_t fcoe_conn_id /* Drivers connection ID (only 16 bits are used) */;
-	uint32_t completion_status /* 0=command completed succesfuly, 1=command failed */;
+	uint32_t completion_status /* 0=command completed successfully, 1=command failed */;
 	uint32_t fcoe_conn_context_id /* Context ID of the FCoE connection */;
 	union fcoe_kcqe_params params /* command-specific parameters */;
 	uint16_t qe_self_seq /* Self identifying sequence number */;
@@ -9464,7 +9464,7 @@ union iscsi_kcqe_params
 struct iscsi_kcqe
 {
 	uint32_t iscsi_conn_id /* Drivers connection ID (only 16 bits are used) */;
-	uint32_t completion_status /* 0=command completed succesfuly, 1=command failed */;
+	uint32_t completion_status /* 0=command completed successfully, 1=command failed */;
 	uint32_t iscsi_conn_context_id /* Context ID of the iSCSI connection */;
 	union iscsi_kcqe_params params /* command-specific parameters */;
 #if defined(__BIG_ENDIAN)
@@ -10241,7 +10241,7 @@ struct tstorm_tcp_st_context_section
 	uint16_t mid_mac_address /* TX source MAC MID-16 */;
 	uint16_t msb_mac_address /* TX source MAC MSB-16 */;
 #endif
-	uint32_t rightmost_received_seq /* The maximum sequence ever recieved - used for The New Patent */;
+	uint32_t rightmost_received_seq /* The maximum sequence ever received - used for The New Patent */;
 };
 
 /*
@@ -11694,7 +11694,7 @@ struct flow_control_configuration
 struct function_start_data
 {
 	uint8_t function_mode /* the function mode */;
-	uint8_t allow_npar_tx_switching /* If set, inter-pf tx switching is allowed in Switch Independant function mode. (E2/E3 Only) */;
+	uint8_t allow_npar_tx_switching /* If set, inter-pf tx switching is allowed in Switch Independent function mode. (E2/E3 Only) */;
 	uint16_t sd_vlan_tag /* value of Vlan in case of switch depended multi-function mode */;
 	uint16_t vif_id /* value of VIF id in case of NIV multi-function mode */;
 	uint8_t path_id;
@@ -11712,7 +11712,7 @@ struct function_start_data
 	uint8_t sd_accept_mf_clss_fail /* If set, accept packets that fail Multi-Function Switch-Dependent classification. Only one VNIC on the port can have this set to 1 */;
 	uint8_t sd_accept_mf_clss_fail_match_ethtype /* If set, accepted packets must match the ethertype of sd_clss_fail_ethtype */;
 	uint16_t sd_accept_mf_clss_fail_ethtype /* Ethertype to match in the case of sd_accept_mf_clss_fail_match_ethtype */;
-	uint16_t sd_vlan_eth_type /* Value of ether-type to use in the case of switch dependant multi-function mode. Setting this to 0 uses the default value of 0x8100 */;
+	uint16_t sd_vlan_eth_type /* Value of ether-type to use in the case of switch dependent multi-function mode. Setting this to 0 uses the default value of 0x8100 */;
 	uint8_t sd_vlan_force_pri_flg /* If set, the SD Vlan Priority is forced to the value of the sd_vlan_pri_force_val field regardless of the DCB or inband VLAN priority. */;
 	uint8_t sd_vlan_force_pri_val /* value to force SD Vlan Priority if sd_vlan_pri_force_flg is set */;
 	uint8_t c2s_pri_tt_valid /* When set, c2s_pri_trans_table is valid */;
@@ -11754,7 +11754,7 @@ struct function_update_data
 	uint8_t sd_vlan_eth_type_change_flg /* If set, the SD VLAN Ethertype is changed according to the field sd_vlan_eth_type */;
 	uint8_t reserved1;
 	uint16_t sd_vlan_tag /* New value of Outer Vlan in case of switch depended multi-function mode */;
-	uint16_t sd_vlan_eth_type /* New value of ether-type in the case of switch dependant multi-function mode. Setting this to 0 restores the default value of 0x8100 */;
+	uint16_t sd_vlan_eth_type /* New value of ether-type in the case of switch dependent multi-function mode. Setting this to 0 restores the default value of 0x8100 */;
 	uint16_t reserved0;
 	uint32_t reserved2;
 };
@@ -12564,7 +12564,7 @@ struct ustorm_toe_prefetched_bd
 	uint32_t __addr_hi /* receive payload base address  - Single continuous buffer (page) pointer */;
 #if defined(__BIG_ENDIAN)
 	uint16_t flags;
-		#define __USTORM_TOE_PREFETCHED_BD_START                                             (0x1<<0) /* BitField flagsbd command flags	this bd is the begining of an application buffer */
+		#define __USTORM_TOE_PREFETCHED_BD_START                                             (0x1<<0) /* BitField flagsbd command flags	this bd is the beginning of an application buffer */
 		#define __USTORM_TOE_PREFETCHED_BD_START_SHIFT                                       0
 		#define __USTORM_TOE_PREFETCHED_BD_END                                               (0x1<<1) /* BitField flagsbd command flags	this bd is the end of an application buffer */
 		#define __USTORM_TOE_PREFETCHED_BD_END_SHIFT                                         1
@@ -12578,7 +12578,7 @@ struct ustorm_toe_prefetched_bd
 #elif defined(__LITTLE_ENDIAN)
 	uint16_t __buf_un_used /* Number of bytes left for placement in the pre fetched  application/grq bd   0 size for buffer is not valid */;
 	uint16_t flags;
-		#define __USTORM_TOE_PREFETCHED_BD_START                                             (0x1<<0) /* BitField flagsbd command flags	this bd is the begining of an application buffer */
+		#define __USTORM_TOE_PREFETCHED_BD_START                                             (0x1<<0) /* BitField flagsbd command flags	this bd is the beginning of an application buffer */
 		#define __USTORM_TOE_PREFETCHED_BD_START_SHIFT                                       0
 		#define __USTORM_TOE_PREFETCHED_BD_END                                               (0x1<<1) /* BitField flagsbd command flags	this bd is the end of an application buffer */
 		#define __USTORM_TOE_PREFETCHED_BD_END_SHIFT                                         1
@@ -12609,9 +12609,9 @@ struct ustorm_toe_st_context
 		#define USTORM_TOE_ST_CONTEXT_RESERVED0                                              (0x1F<<3) /* BitField flags2various state flags	 */
 		#define USTORM_TOE_ST_CONTEXT_RESERVED0_SHIFT                                        3
 	uint8_t __indirection_shift /* Offset in bits of the cupid of this connection on the 64Bits fetched from internal memoy */;
-	uint16_t indirection_ram_offset /* address offset in internal memory  from the begining of the table  consisting the cpu id of this connection (Only 12 bits are used) */;
+	uint16_t indirection_ram_offset /* address offset in internal memory  from the beginning of the table  consisting the cpu id of this connection (Only 12 bits are used) */;
 #elif defined(__LITTLE_ENDIAN)
-	uint16_t indirection_ram_offset /* address offset in internal memory  from the begining of the table  consisting the cpu id of this connection (Only 12 bits are used) */;
+	uint16_t indirection_ram_offset /* address offset in internal memory  from the beginning of the table  consisting the cpu id of this connection (Only 12 bits are used) */;
 	uint8_t __indirection_shift /* Offset in bits of the cupid of this connection on the 64Bits fetched from internal memoy */;
 	uint8_t flags2;
 		#define USTORM_TOE_ST_CONTEXT_IGNORE_GRQ_PUSH                                        (0x1<<0) /* BitField flags2various state flags	we will ignore grq push unless it is ping pong test */
@@ -12637,8 +12637,8 @@ struct ustorm_toe_st_context
 	uint32_t initial_rcv_wnd /* the maximal advertized window */;
 	uint32_t __bytes_cons /* the last rq_available_bytes producer that was read from host - used to know how many bytes were added */;
 	uint32_t __prev_consumed_grq_bytes /* the last rq_available_bytes producer that was read from host - used to know how many bytes were added */;
-	uint32_t prev_rcv_win_right_edge /* siquence of the last bytes that can be recieved - used to know how many bytes were added */;
-	uint32_t rcv_nxt /* Receive sequence: next expected - of the right most recieved packet */;
+	uint32_t prev_rcv_win_right_edge /* siquence of the last bytes that can be received - used to know how many bytes were added */;
+	uint32_t rcv_nxt /* Receive sequence: next expected - of the right most received packet */;
 	struct ustorm_toe_prefetched_isle_bd __isle_bd /* prefetched bd for the isle */;
 	struct ustorm_toe_ring_params pen_ring_params /* peninsula ring params */;
 	struct ustorm_toe_prefetched_bd __pen_bd_0 /* peninsula prefetched bd for the peninsula */;
@@ -12839,7 +12839,7 @@ struct toe_rx_bd
 	uint32_t addr_hi /* receive payload base address  - Single continuous buffer (page) pointer */;
 #if defined(__BIG_ENDIAN)
 	uint16_t flags;
-		#define TOE_RX_BD_START                                                              (0x1<<0) /* BitField flagsbd command flags	this bd is the begining of an application buffer */
+		#define TOE_RX_BD_START                                                              (0x1<<0) /* BitField flagsbd command flags	this bd is the beginning of an application buffer */
 		#define TOE_RX_BD_START_SHIFT                                                        0
 		#define TOE_RX_BD_END                                                                (0x1<<1) /* BitField flagsbd command flags	this bd is the end of an application buffer */
 		#define TOE_RX_BD_END_SHIFT                                                          1
@@ -12853,7 +12853,7 @@ struct toe_rx_bd
 #elif defined(__LITTLE_ENDIAN)
 	uint16_t size /* Size of the buffer pointed by the BD */;
 	uint16_t flags;
-		#define TOE_RX_BD_START                                                              (0x1<<0) /* BitField flagsbd command flags	this bd is the begining of an application buffer */
+		#define TOE_RX_BD_START                                                              (0x1<<0) /* BitField flagsbd command flags	this bd is the beginning of an application buffer */
 		#define TOE_RX_BD_START_SHIFT                                                        0
 		#define TOE_RX_BD_END                                                                (0x1<<1) /* BitField flagsbd command flags	this bd is the end of an application buffer */
 		#define TOE_RX_BD_END_SHIFT                                                          1
@@ -12935,7 +12935,7 @@ struct toe_rx_cqe
  */
 struct toe_rx_db_data
 {
-	uint32_t rcv_win_right_edge /* siquence of the last bytes that can be recieved */;
+	uint32_t rcv_win_right_edge /* siquence of the last bytes that can be received */;
 	uint32_t bytes_prod /* cyclic counter of posted bytes */;
 #if defined(__BIG_ENDIAN)
 	uint8_t reserved1 /* reserved */;
diff --git a/sys/dev/bxe/ecore_init.h b/sys/dev/bxe/ecore_init.h
index 8ce06abdbf88..05c5bf761239 100644
--- a/sys/dev/bxe/ecore_init.h
+++ b/sys/dev/bxe/ecore_init.h
@@ -321,7 +321,7 @@ static inline void ecore_dcb_config_qm(struct bxe_softc *sc, enum cos_mode mode,
 
 
 /*
- * congestion managment port init api description
+ * congestion management port init api description
  * the api works as follows:
  * the driver should pass the cmng_init_input struct, the port_init function
  * will prepare the required internal ram structure which will be passed back
diff --git a/sys/dev/bxe/ecore_sp.h b/sys/dev/bxe/ecore_sp.h
index 15403d7b9531..10d6c08fbcf9 100644
--- a/sys/dev/bxe/ecore_sp.h
+++ b/sys/dev/bxe/ecore_sp.h
@@ -1949,7 +1949,7 @@ void ecore_init_mcast_obj(struct bxe_softc *sc,
  * the current command will be enqueued to the tail of the
  * pending commands list.
  *
- * Return: 0 is operation was successfull and there are no pending completions,
+ * Return: 0 is operation was successful and there are no pending completions,
  *         negative if there were errors, positive if there are pending
  *         completions.
  */
diff --git a/sys/dev/cardbus/cardbus_cis.c b/sys/dev/cardbus/cardbus_cis.c
index 00c34a6d9e84..55c4d3594ef3 100644
--- a/sys/dev/cardbus/cardbus_cis.c
+++ b/sys/dev/cardbus/cardbus_cis.c
@@ -406,7 +406,7 @@ cardbus_read_tuple_conf(device_t cbdev, device_t child, uint32_t start,
 }
 
 /*
- * Read the CIS data out of memroy.  We indirect through the bus space
+ * Read the CIS data out of memory.  We indirect through the bus space
  * routines to ensure proper byte ordering conversions when necessary.
  */
 static int
diff --git a/sys/dev/ce/ceddk.c b/sys/dev/ce/ceddk.c
index bc9801292090..3707d478d995 100644
--- a/sys/dev/ce/ceddk.c
+++ b/sys/dev/ce/ceddk.c
@@ -623,7 +623,7 @@ void ce_stop_chan (ce_chan_t *c)
 
 	/* XXXRIK: This function should be for comleteness, but for now I
 	 * don't use it. So I just start to write and didn't finished it yet.
-	 * It and it is VERY BUGGY!!! Do not use it. If you realy
+	 * It and it is VERY BUGGY!!! Do not use it. If you really
 	 * need it ask me to fix it or rewrite it by your self.
 	 * Note: most buggy part of it in ce_on_config_stop!
 	 */
diff --git a/sys/dev/ce/if_ce.c b/sys/dev/ce/if_ce.c
index 85b9fce33017..69779d6c5e2d 100644
--- a/sys/dev/ce/if_ce.c
+++ b/sys/dev/ce/if_ce.c
@@ -2448,7 +2448,7 @@ static int ng_ce_rmnode (node_p node)
 		NG_NODE_UNREF (node);
 	}
 #if __FreeBSD_version >= 502120
-	NG_NODE_REVIVE(node);		/* Persistant node */
+	NG_NODE_REVIVE(node);		/* Persistent node */
 #else
 	node->nd_flags &= ~NG_INVALID;
 #endif
diff --git a/sys/dev/cesa/cesa.c b/sys/dev/cesa/cesa.c
index 8a2b19d95007..4d71ae0af14a 100644
--- a/sys/dev/cesa/cesa.c
+++ b/sys/dev/cesa/cesa.c
@@ -284,7 +284,7 @@ cesa_free_request(struct cesa_softc *sc, struct cesa_request *cr)
 	STAILQ_CONCAT(&sc->sc_free_sdesc, &cr->cr_sdesc);
 	CESA_UNLOCK(sc, sdesc);
 
-	/* Unload DMA memory asociated with request */
+	/* Unload DMA memory associated with request */
 	if (cr->cr_dmap_loaded) {
 		bus_dmamap_unload(sc->sc_data_dtag, cr->cr_dmap);
 		cr->cr_dmap_loaded = 0;
@@ -705,7 +705,7 @@ cesa_create_chain_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
 			/*
 			 * Fill in current packet with data. Break if there is
 			 * no more data in current DMA segment or an error
-			 * occured.
+			 * occurred.
 			 */
 			size = cesa_fill_packet(sc, &cp, &seg);
 			if (size <= 0) {
@@ -1260,7 +1260,7 @@ cesa_detach(device_t dev)
 	/* Relase I/O and IRQ resources */
 	bus_release_resources(dev, cesa_res_spec, sc->sc_res);
 
-	/* Destory mutexes */
+	/* Destroy mutexes */
 	mtx_destroy(&sc->sc_sessions_lock);
 	mtx_destroy(&sc->sc_requests_lock);
 	mtx_destroy(&sc->sc_sdesc_lock);
diff --git a/sys/dev/ciss/cissvar.h b/sys/dev/ciss/cissvar.h
index 6bc9cf4e8a33..20693af7c6dd 100644
--- a/sys/dev/ciss/cissvar.h
+++ b/sys/dev/ciss/cissvar.h
@@ -58,7 +58,7 @@ typedef STAILQ_HEAD(, ciss_request)	cr_qhead_t;
 
 /*
  * Interrupt reduction can be controlled by tuning the interrupt
- * coalesce delay and count paramters.  The delay (in microseconds)
+ * coalesce delay and count parameters.  The delay (in microseconds)
  * defers delivery of interrupts to increase the chance of there being
  * more than one completed command ready when the interrupt is
  * delivered.  The count expedites the delivery of the interrupt when
diff --git a/sys/dev/cmx/cmx.c b/sys/dev/cmx/cmx.c
index 69cf8921690a..a7cd8ab22fbe 100644
--- a/sys/dev/cmx/cmx.c
+++ b/sys/dev/cmx/cmx.c
@@ -235,7 +235,7 @@ cmx_release_resources(device_t dev)
 }
 
 /*
- * Bus independant device attachment routine.  Creates the
+ * Bus independent device attachment routine.  Creates the
  * character device node.
  */
 int
@@ -258,7 +258,7 @@ cmx_attach(device_t dev)
 }
 
 /*
- * Bus independant device detachment routine.  Makes sure all
+ * Bus independent device detachment routine.  Makes sure all
  * allocated resources are freed, callouts disabled and waiting
  * processes unblocked.
  */
diff --git a/sys/dev/cmx/cmx_pccard.c b/sys/dev/cmx/cmx_pccard.c
index ebb57cc865f1..89411e503289 100644
--- a/sys/dev/cmx/cmx_pccard.c
+++ b/sys/dev/cmx/cmx_pccard.c
@@ -72,7 +72,7 @@ cmx_pccard_probe(device_t dev)
 }
 
 /*
- * Attach to the pccard, and call bus independant attach and
+ * Attach to the pccard, and call bus independent attach and
  * resource allocation routines.
  */
 static int
diff --git a/sys/dev/cp/if_cp.c b/sys/dev/cp/if_cp.c
index f1a120f52feb..426a5eedd608 100644
--- a/sys/dev/cp/if_cp.c
+++ b/sys/dev/cp/if_cp.c
@@ -2171,7 +2171,7 @@ static int ng_cp_rmnode (node_p node)
 		NG_NODE_SET_PRIVATE (node, NULL);
 		NG_NODE_UNREF (node);
 	}
-	NG_NODE_REVIVE(node);		/* Persistant node */
+	NG_NODE_REVIVE(node);		/* Persistent node */
 #endif
 	return 0;
 }
diff --git a/sys/dev/cs/if_cs.c b/sys/dev/cs/if_cs.c
index af8a93e861b2..3c52d892ab52 100644
--- a/sys/dev/cs/if_cs.c
+++ b/sys/dev/cs/if_cs.c
@@ -180,7 +180,7 @@ wait_eeprom_ready(struct cs_softc *sc)
 	 *
 	 * Before we issue the command, we should be !busy, so that will
 	 * be fast.  The datasheet suggests that clock out from the part
-	 * per word will be on the order of 25us, which is consistant with
+	 * per word will be on the order of 25us, which is consistent with
 	 * the 1MHz serial clock and 16bits...  We should never hit 100,
 	 * let alone 15,000 here.  The original code did an unconditional
 	 * 30ms DELAY here.  Bad Kharma.  cs_readreg takes ~2us.
diff --git a/sys/dev/cx/csigma.c b/sys/dev/cx/csigma.c
index 7be223997d06..b0e56e168fe3 100644
--- a/sys/dev/cx/csigma.c
+++ b/sys/dev/cx/csigma.c
@@ -100,7 +100,7 @@ static int cx_reset (port_t port)
 
 	cx_cmd (port, CCR_RSTALL);
 
-	/* Firmware revision code should clear imediately. */
+	/* Firmware revision code should clear immediately. */
 	/* Wait up to 10 msec for revision code to appear again. */
 	for (count=0; count<20000; ++count)
 		if (inb(GFRCR(port)) != 0)
diff --git a/sys/dev/cx/if_cx.c b/sys/dev/cx/if_cx.c
index d513161e0fd5..654e9136ccdf 100644
--- a/sys/dev/cx/if_cx.c
+++ b/sys/dev/cx/if_cx.c
@@ -2453,7 +2453,7 @@ static int ng_cx_rmnode (node_p node)
 		NG_NODE_SET_PRIVATE (node, NULL);
 		NG_NODE_UNREF (node);
 	}
-	NG_NODE_REVIVE(node);		/* Persistant node */
+	NG_NODE_REVIVE(node);		/* Persistent node */
 #endif
 	return 0;
 }
diff --git a/sys/dev/cxgb/common/cxgb_t3_hw.c b/sys/dev/cxgb/common/cxgb_t3_hw.c
index 942571af2d12..33e308e675a7 100644
--- a/sys/dev/cxgb/common/cxgb_t3_hw.c
+++ b/sys/dev/cxgb/common/cxgb_t3_hw.c
@@ -651,7 +651,7 @@ struct t3_vpd {
  *
  *	Read a 32-bit word from a location in VPD EEPROM using the card's PCI
  *	VPD ROM capability.  A zero is written to the flag bit when the
- *	addres is written to the control register.  The hardware device will
+ *	address is written to the control register.  The hardware device will
  *	set the flag to 1 when 4 bytes have been read into the data register.
  */
 int t3_seeprom_read(adapter_t *adapter, u32 addr, u32 *data)
@@ -1031,7 +1031,7 @@ static int flash_wait_op(adapter_t *adapter, int attempts, int delay)
  *	Read the specified number of 32-bit words from the serial flash.
  *	If @byte_oriented is set the read data is stored as a byte array
  *	(i.e., big-endian), otherwise as 32-bit words in the platform's
- *	natural endianess.
+ *	natural endianness.
  */
 int t3_read_flash(adapter_t *adapter, unsigned int addr, unsigned int nwords,
 		  u32 *data, int byte_oriented)
@@ -1068,7 +1068,7 @@ int t3_read_flash(adapter_t *adapter, unsigned int addr, unsigned int nwords,
  *	Writes up to a page of data (256 bytes) to the serial flash starting
  *	at the given address.
  *	If @byte_oriented is set the write data is stored as a 32-bit
- *	big-endian array, otherwise in the processor's native endianess.
+ *	big-endian array, otherwise in the processor's native endianness.
  *
  */
 static int t3_write_flash(adapter_t *adapter, unsigned int addr,
@@ -1738,7 +1738,7 @@ struct intr_info {
  *
  *	A table driven interrupt handler that applies a set of masks to an
  *	interrupt status word and performs the corresponding actions if the
- *	interrupts described by the mask have occured.  The actions include
+ *	interrupts described by the mask have occurred.  The actions include
  *	optionally printing a warning or alert message, and optionally
  *	incrementing a stat counter.  The table is terminated by an entry
  *	specifying mask 0.  Returns the number of fatal interrupt conditions.
@@ -3338,7 +3338,7 @@ static void __devinit init_mtus(unsigned short mtus[])
 {
 	/*
 	 * See draft-mathis-plpmtud-00.txt for the values.  The min is 88 so
-	 * it can accomodate max size TCP/IP headers when SACK and timestamps
+	 * it can accommodate max size TCP/IP headers when SACK and timestamps
 	 * are enabled and still have at least 8 bytes of payload.
 	 */
 	mtus[0] = 88;
diff --git a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_hal.c b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_hal.c
index 24272636fdcb..4267e2554b20 100644
--- a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_hal.c
+++ b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_hal.c
@@ -633,7 +633,7 @@ cxio_hal_ctrl_qp_write_mem(struct cxio_rdev *rdev_p, u32 addr,
 {
 	u32 i, nr_wqe, copy_len;
 	u8 *copy_data;
-	u8 wr_len, utx_len;	/* lenght in 8 byte flit */
+	u8 wr_len, utx_len;	/* length in 8 byte flit */
 	enum t3_wr_flags flag;
 	__be64 *wqe;
 	u64 utx_cmd;
diff --git a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_wr.h b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_wr.h
index 8718aa061d79..57690a266839 100644
--- a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_wr.h
+++ b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb_wr.h
@@ -633,7 +633,7 @@ struct t3_swrq {
  * A T3 WQ implements both the SQ and RQ.
  */
 struct t3_wq {
-	union t3_wr *queue;		/* DMA accessable memory */
+	union t3_wr *queue;		/* DMA accessible memory */
 	bus_addr_t dma_addr;		/* DMA address for HW */
 	u32 error;			/* 1 once we go to ERROR */
 	u32 qpid;
diff --git a/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c b/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c
index 6343d4d01f10..804c9e12b013 100644
--- a/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c
+++ b/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c
@@ -861,7 +861,7 @@ calc_opt0l(struct socket *so, int rcv_bufsize)
 	KASSERT(rcv_bufsize <= M_RCV_BUFSIZ,
 	    ("%s: rcv_bufsize (%d) is too high", __func__, rcv_bufsize));
 
-	if (so != NULL)		/* optional because noone cares about IP TOS */
+	if (so != NULL)		/* optional because no one cares about IP TOS */
 		opt0l |= V_TOS(INP_TOS(sotoinpcb(so)));
 
 	return (htobe32(opt0l));
diff --git a/sys/dev/cxgbe/adapter.h b/sys/dev/cxgbe/adapter.h
index 2193142c551e..5800faa51500 100644
--- a/sys/dev/cxgbe/adapter.h
+++ b/sys/dev/cxgbe/adapter.h
@@ -621,7 +621,7 @@ struct sge_wrq {
 
 	/*
 	 * Scratch space for work requests that wrap around after reaching the
-	 * status page, and some infomation about the last WR that used it.
+	 * status page, and some information about the last WR that used it.
 	 */
 	uint16_t ss_pidx;
 	uint16_t ss_len;
diff --git a/sys/dev/cxgbe/common/t4_hw.c b/sys/dev/cxgbe/common/t4_hw.c
index 03312b1aa4e6..7ecdb81a44b8 100644
--- a/sys/dev/cxgbe/common/t4_hw.c
+++ b/sys/dev/cxgbe/common/t4_hw.c
@@ -2706,7 +2706,7 @@ int t4_seeprom_read(struct adapter *adapter, u32 addr, u32 *data)
 	}
 
 	/*
-	 * Grab the returned data, swizzle it into our endianess and
+	 * Grab the returned data, swizzle it into our endianness and
 	 * return success.
 	 */
 	t4_os_pci_read_cfg4(adapter, base + PCI_VPD_DATA, data);
@@ -7739,7 +7739,7 @@ static void read_filter_mode_and_ingress_config(struct adapter *adap)
 
 	/*
 	 * If TP_INGRESS_CONFIG.VNID == 0, then TP_VLAN_PRI_MAP.VNIC_ID
-	 * represents the presense of an Outer VLAN instead of a VNIC ID.
+	 * represents the presence of an Outer VLAN instead of a VNIC ID.
 	 */
 	if ((tpp->ingress_config & F_VNIC) == 0)
 		tpp->vnic_shift = -1;
@@ -9121,7 +9121,7 @@ int t4_config_watchdog(struct adapter *adapter, unsigned int mbox,
 	/*
 	 * The watchdog command expects a timeout in units of 10ms so we need
 	 * to convert it here (via rounding) and force a minimum of one 10ms
-	 * "tick" if the timeout is non-zero but the convertion results in 0
+	 * "tick" if the timeout is non-zero but the conversion results in 0
 	 * ticks.
 	 */
 	ticks = (timeout + 5)/10;
diff --git a/sys/dev/cxgbe/cxgbei/cxgbei.c b/sys/dev/cxgbe/cxgbei/cxgbei.c
index 66ceb895f29d..775e3a2c9474 100644
--- a/sys/dev/cxgbe/cxgbei/cxgbei.c
+++ b/sys/dev/cxgbe/cxgbei/cxgbei.c
@@ -214,7 +214,7 @@ t4_ddp_set_map(struct cxgbei_data *ci, void *iccp,
 
 	/*
 	 * on T4, if we use a mix of IMMD and DSGL with ULP_MEM_WRITE,
-	 * the order would not be garanteed, so we will stick with IMMD
+	 * the order would not be guaranteed, so we will stick with IMMD
 	 */
 	gl->tid = toep->tid;
 	gl->port_id = toep->vi->pi->port_id;
diff --git a/sys/dev/cxgbe/firmware/t4fw_cfg_uwire.txt b/sys/dev/cxgbe/firmware/t4fw_cfg_uwire.txt
index cc8ad8bfb741..43dc76e31fa3 100644
--- a/sys/dev/cxgbe/firmware/t4fw_cfg_uwire.txt
+++ b/sys/dev/cxgbe/firmware/t4fw_cfg_uwire.txt
@@ -17,7 +17,7 @@
 # finite.  This requires balancing the configuration/operation needs of
 # device drivers across OSes and a large number of customer application.
 #
-# Some of the more important resources to allocate and their constaints are:
+# Some of the more important resources to allocate and their constraints are:
 #  1. Virtual Interfaces: 128.
 #  2. Ingress Queues with Free Lists: 1024.  PCI-E SR-IOV Virtual Functions
 #     must use a power of 2 Ingress Queues.
@@ -275,7 +275,7 @@
 # to directly select the type of Physical Function to which they wish to be
 # attached.
 #
-# Note that the actual values used for the PCI-E Intelectual Property will be
+# Note that the actual values used for the PCI-E Intellectual Property will be
 # 1 less than those below since that's the way it "counts" things.  For
 # readability, we use the number we actually mean ...
 #
diff --git a/sys/dev/cxgbe/firmware/t4fw_interface.h b/sys/dev/cxgbe/firmware/t4fw_interface.h
index f4d7825726af..ccb3612c73bc 100644
--- a/sys/dev/cxgbe/firmware/t4fw_interface.h
+++ b/sys/dev/cxgbe/firmware/t4fw_interface.h
@@ -35,7 +35,7 @@
  ********************************/
 
 enum fw_retval {
-	FW_SUCCESS		= 0,	/* completed sucessfully */
+	FW_SUCCESS		= 0,	/* completed successfully */
 	FW_EPERM		= 1,	/* operation not permitted */
 	FW_ENOENT		= 2,	/* no such file or directory */
 	FW_EIO			= 5,	/* input/output error; hw bad */
@@ -8635,7 +8635,7 @@ enum pcie_fw_eval {
  **********************************************/
 
 /*
- *	this register is available as 32-bit of persistent storage (accross
+ *	this register is available as 32-bit of persistent storage (across
  *	PL_RST based chip-reset) for boot drivers (i.e. firmware and driver
  *	will not write it)
  */
diff --git a/sys/dev/cxgbe/firmware/t5fw_cfg_fpga.txt b/sys/dev/cxgbe/firmware/t5fw_cfg_fpga.txt
index e1c8b0008156..4c74fa1bebe3 100644
--- a/sys/dev/cxgbe/firmware/t5fw_cfg_fpga.txt
+++ b/sys/dev/cxgbe/firmware/t5fw_cfg_fpga.txt
@@ -17,7 +17,7 @@
 # finite.  This requires balancing the configuration/operation needs of
 # device drivers across OSes and a large number of customer application.
 #
-# Some of the more important resources to allocate and their constaints are:
+# Some of the more important resources to allocate and their constraints are:
 #  1. Virtual Interfaces: 128.
 #  2. Ingress Queues with Free Lists: 1024.  PCI-E SR-IOV Virtual Functions
 #     must use a power of 2 Ingress Queues.
@@ -292,7 +292,7 @@
 # to directly select the type of Physical Function to which they wish to be
 # attached.
 #
-# Note that the actual values used for the PCI-E Intelectual Property will be
+# Note that the actual values used for the PCI-E Intellectual Property will be
 # 1 less than those below since that's the way it "counts" things.  For
 # readability, we use the number we actually mean ...
 #
diff --git a/sys/dev/cxgbe/firmware/t5fw_cfg_uwire.txt b/sys/dev/cxgbe/firmware/t5fw_cfg_uwire.txt
index 6fcc9348454f..d6caf2ccef68 100644
--- a/sys/dev/cxgbe/firmware/t5fw_cfg_uwire.txt
+++ b/sys/dev/cxgbe/firmware/t5fw_cfg_uwire.txt
@@ -18,7 +18,7 @@
 # are finite.  This requires balancing the configuration/operation needs of
 # device drivers across OSes and a large number of customer application.
 #
-# Some of the more important resources to allocate and their constaints are:
+# Some of the more important resources to allocate and their constraints are:
 #  1. Virtual Interfaces: 256.
 #  2. Ingress Queues with Free Lists: 1024.
 #  3. Egress Queues: 128K.
@@ -309,7 +309,7 @@
 # to directly select the type of Physical Function to which they wish to be
 # attached.
 #
-# Note that the actual values used for the PCI-E Intelectual Property will be
+# Note that the actual values used for the PCI-E Intellectual Property will be
 # 1 less than those below since that's the way it "counts" things.  For
 # readability, we use the number we actually mean ...
 #
diff --git a/sys/dev/cxgbe/offload.h b/sys/dev/cxgbe/offload.h
index 992b4cd975bb..d1363c4a8c28 100644
--- a/sys/dev/cxgbe/offload.h
+++ b/sys/dev/cxgbe/offload.h
@@ -87,7 +87,7 @@ struct tid_info {
 	u_int nstids;
 	u_int stid_base;
 	u_int stids_in_use;
-	u_int nstids_free_head;	/* # of available stids at the begining */
+	u_int nstids_free_head;	/* # of available stids at the beginning */
 	struct stid_head stids;
 
 	struct mtx atid_lock __aligned(CACHE_LINE_SIZE);
diff --git a/sys/dev/cxgbe/t4_ioctl.h b/sys/dev/cxgbe/t4_ioctl.h
index 473cf896a9a0..fdc5e98514a2 100644
--- a/sys/dev/cxgbe/t4_ioctl.h
+++ b/sys/dev/cxgbe/t4_ioctl.h
@@ -156,7 +156,7 @@ struct t4_filter_tuple {
 	uint16_t dport;		/* destination port */
 
 	/*
-	 * A combination of these (upto 36 bits) is available.  TP_VLAN_PRI_MAP
+	 * A combination of these (up to 36 bits) is available.  TP_VLAN_PRI_MAP
 	 * is used to select the global mode and all filters are limited to the
 	 * set of fields allowed by the global mode.
 	 */
diff --git a/sys/dev/cxgbe/t4_l2t.c b/sys/dev/cxgbe/t4_l2t.c
index cca1bf314b56..cab5cc28ce8c 100644
--- a/sys/dev/cxgbe/t4_l2t.c
+++ b/sys/dev/cxgbe/t4_l2t.c
@@ -59,7 +59,7 @@ __FBSDID("$FreeBSD$");
  * can change state or increment its ref count during allocation as both of
  * these perform lookups.
  *
- * Note: We do not take refereces to ifnets in this module because both
+ * Note: We do not take references to ifnets in this module because both
  * the TOE and the sockets already hold references to the interfaces and the
  * lifetime of an L2T entry is fully contained in the lifetime of the TOE.
  */
diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index e3b64b0b25fd..1e86aa9516a5 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -4146,7 +4146,7 @@ vi_full_init(struct vi_info *vi)
 
 	if (extra) {
 		if_printf(ifp,
-		    "global RSS config (0x%x) cannot be accomodated.\n",
+		    "global RSS config (0x%x) cannot be accommodated.\n",
 		    hashconfig);
 	}
 	if (extra & RSS_HASHTYPE_RSS_IPV4)
@@ -5207,7 +5207,7 @@ cxgbe_sysctls(struct port_info *pi)
 	SYSCTL_ADD_UQUAD(ctx, children, OID_AUTO, #name, CTLFLAG_RD, \
 	    &pi->stats.name, desc)
 
-	/* We get these from port_stats and they may be stale by upto 1s */
+	/* We get these from port_stats and they may be stale by up to 1s */
 	SYSCTL_ADD_T4_PORTSTAT(rx_ovflow0,
 	    "# drops due to buffer-group 0 overflows");
 	SYSCTL_ADD_T4_PORTSTAT(rx_ovflow1,
diff --git a/sys/dev/cxgbe/t4_mp_ring.c b/sys/dev/cxgbe/t4_mp_ring.c
index 045a24b87f16..32ee41f850a0 100644
--- a/sys/dev/cxgbe/t4_mp_ring.c
+++ b/sys/dev/cxgbe/t4_mp_ring.c
@@ -282,7 +282,7 @@ mp_ring_enqueue(struct mp_ring *r, void **items, int n, int budget)
 	/*
 	 * Wait for other producers who got in ahead of us to enqueue their
 	 * items, one producer at a time.  It is our turn when the ring's
-	 * pidx_tail reaches the begining of our reservation (pidx_start).
+	 * pidx_tail reaches the beginning of our reservation (pidx_start).
 	 */
 	while (ns.pidx_tail != pidx_start) {
 		cpu_spinwait();
diff --git a/sys/dev/cxgbe/t4_sge.c b/sys/dev/cxgbe/t4_sge.c
index fd4f291b6f55..ad1da55ef8f7 100644
--- a/sys/dev/cxgbe/t4_sge.c
+++ b/sys/dev/cxgbe/t4_sge.c
@@ -3547,7 +3547,7 @@ ring_fl_db(struct adapter *sc, struct sge_fl *fl)
 }
 
 /*
- * Fills up the freelist by allocating upto 'n' buffers.  Buffers that are
+ * Fills up the freelist by allocating up to 'n' buffers.  Buffers that are
  * recycled do not count towards this allocation budget.
  *
  * Returns non-zero to indicate that this freelist should be added to the list
@@ -3569,7 +3569,7 @@ refill_fl(struct adapter *sc, struct sge_fl *fl, int n)
 	FL_LOCK_ASSERT_OWNED(fl);
 
 	/*
-	 * We always stop at the begining of the hardware descriptor that's just
+	 * We always stop at the beginning of the hardware descriptor that's just
 	 * before the one with the hw cidx.  This is to avoid hw pidx = hw cidx,
 	 * which would mean an empty freelist to the chip.
 	 */
diff --git a/sys/dev/de/dc21040reg.h b/sys/dev/de/dc21040reg.h
index c0ff1916578f..d94eca623fb5 100644
--- a/sys/dev/de/dc21040reg.h
+++ b/sys/dev/de/dc21040reg.h
@@ -175,7 +175,7 @@ typedef struct {
 #define	TULIP_CMD_SCRAMBLER	0x01000000L		/* (RW)  Scrambler Mode (21140) */
 #define	TULIP_CMD_PCSFUNCTION	0x00800000L		/* (RW)  PCS Function (21140) */
 #define	TULIP_CMD_TXTHRSHLDCTL	0x00400000L		/* (RW)  Transmit Threshold Mode (21140) */
-#define	TULIP_CMD_STOREFWD	0x00200000L		/* (RW)  Store and Foward (21140) */
+#define	TULIP_CMD_STOREFWD	0x00200000L		/* (RW)  Store and Forward (21140) */
 #define	TULIP_CMD_NOHEARTBEAT	0x00080000L		/* (RW)  No Heartbeat (21140) */
 #define	TULIP_CMD_PORTSELECT	0x00040000L		/* (RW)  Post Select (100Mb) (21140) */
 #define	TULIP_CMD_ENHCAPTEFFCT	0x00040000L		/* (RW)  Enhanced Capture Effecty (21041) */
diff --git a/sys/dev/de/if_de.c b/sys/dev/de/if_de.c
index 0e6b27c01613..a6253f5f5e9f 100644
--- a/sys/dev/de/if_de.c
+++ b/sys/dev/de/if_de.c
@@ -419,7 +419,7 @@ tulip_linkup(tulip_softc_t * const sc, tulip_media_t media)
      * We could set probe_timeout to 0 but setting to 3000 puts this
      * in one central place and the only matters is tulip_link is
      * followed by a tulip_timeout.  Therefore setting it should not
-     * result in aberrant behavour.
+     * result in aberrant behaviour.
      */
     sc->tulip_probe_timeout = 3000;
     sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
diff --git a/sys/dev/de/if_devar.h b/sys/dev/de/if_devar.h
index 8776be01c254..e3e364d02575 100644
--- a/sys/dev/de/if_devar.h
+++ b/sys/dev/de/if_devar.h
@@ -842,7 +842,7 @@ static const struct {
 
 /*
  * This driver supports a maximum of 32 tulip boards.
- * This should be enough for the forseeable future.
+ * This should be enough for the foreseeable future.
  */
 #define	TULIP_MAX_DEVICES	32
 
diff --git a/sys/dev/dpt/dpt.h b/sys/dev/dpt/dpt.h
index a715e5884e62..6c0e341db475 100644
--- a/sys/dev/dpt/dpt.h
+++ b/sys/dev/dpt/dpt.h
@@ -1083,7 +1083,7 @@ typedef struct dpt_softc {
 
 	/*
 	 * Every object on a unit can have a receiver, if it treats
-	 * us as a target.  We do that so that separate and independant
+	 * us as a target.  We do that so that separate and independent
 	 * clients can consume received buffers.
 	 */
 
@@ -1245,7 +1245,7 @@ dpt_softc_t *dpt_minor2softc(int minor_no);
 #endif /* _KERNEL */
 
 /*
- * This function substracts one timval structure from another,
+ * This function subtracts one timval structure from another,
  * Returning the result in usec.
  * It assumes that less than 4 billion usecs passed form start to end.
  * If times are sensless, ~0 is returned.
diff --git a/sys/dev/dpt/dpt_scsi.c b/sys/dev/dpt/dpt_scsi.c
index e6bbf1f96927..26c0f2a01e64 100644
--- a/sys/dev/dpt/dpt_scsi.c
+++ b/sys/dev/dpt/dpt_scsi.c
@@ -31,7 +31,7 @@
 __FBSDID("$FreeBSD$");
 
 /*
- * dpt_scsi.c: SCSI dependant code for the DPT driver
+ * dpt_scsi.c: SCSI dependent code for the DPT driver
  *
  * credits:	Assisted by Mike Neuffer in the early low level DPT code
  *		Thanx to Mark Salyzyn of DPT for his assistance.
@@ -95,7 +95,7 @@ devclass_t	dpt_devclass;
 
 /*
  * These will have to be setup by parameters passed at boot/load time. For
- * perfromance reasons, we make them constants for the time being.
+ * performance reasons, we make them constants for the time being.
  */
 #define	dpt_min_segs	DPT_MAX_SEGS
 #define	dpt_max_segs	DPT_MAX_SEGS
@@ -598,7 +598,7 @@ dpt_detect_cache(dpt_softc_t *dpt, dpt_ccb_t *dccb, u_int32_t dccb_busaddr,
 	mtx_assert(&dpt->lock, MA_OWNED);
 
 	/*
-	 * Default setting, for best perfromance..
+	 * Default setting, for best performance..
 	 * This is what virtually all cards default to..
 	 */
 	dpt->cache_type = DPT_CACHE_WRITEBACK;
@@ -1878,7 +1878,7 @@ dpt_reset_hba(dpt_softc_t *dpt)
 	ccb->cp_msg[0] = HA_IDENTIFY_MSG | HA_DISCO_RECO;
 	ccb->cp_scsi_cmd = 0;  /* Should be ignored */
 
-	/* Lock up the submitted queue.  We are very persistant here */
+	/* Lock up the submitted queue.  We are very persistent here */
 	while (dpt->queue_status & DPT_SUBMITTED_QUEUE_ACTIVE) {
 		DELAY(100);
 	}
diff --git a/sys/dev/drm/drm.h b/sys/dev/drm/drm.h
index e579a16604ad..a2612049bb0d 100644
--- a/sys/dev/drm/drm.h
+++ b/sys/dev/drm/drm.h
@@ -812,7 +812,7 @@ struct drm_fence_arg {
  */
 #define DRM_BO_HINT_WAIT_LAZY   0x00000008
 /*
- * The client has compute relocations refering to this buffer using the
+ * The client has compute relocations referring to this buffer using the
  * offset in the presumed_offset field. If that offset ends up matching
  * where this buffer lands, the kernel is free to skip executing those
  * relocations
diff --git a/sys/dev/drm/drm_bufs.c b/sys/dev/drm/drm_bufs.c
index b685a591c01f..1ee0ffa6da36 100644
--- a/sys/dev/drm/drm_bufs.c
+++ b/sys/dev/drm/drm_bufs.c
@@ -668,7 +668,7 @@ static int drm_do_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *reque
 		dma->buflist[i + dma->buf_count] = &entry->buflist[i];
 	}
 
-	/* No allocations failed, so now we can replace the orginal pagelist
+	/* No allocations failed, so now we can replace the original pagelist
 	 * with the new one.
 	 */
 	free(dma->pagelist, DRM_MEM_PAGES);
diff --git a/sys/dev/drm/drm_vm.c b/sys/dev/drm/drm_vm.c
index 798685607af2..4810343b3a07 100644
--- a/sys/dev/drm/drm_vm.c
+++ b/sys/dev/drm/drm_vm.c
@@ -43,7 +43,7 @@ int drm_mmap(struct cdev *kdev, vm_ooffset_t offset, vm_paddr_t *paddr,
 
 	/* d_mmap gets called twice, we can only reference file_priv during
 	 * the first call.  We need to assume that if error is EBADF the
-	 * call was succesful and the client is authenticated.
+	 * call was successful and the client is authenticated.
 	 */
 	error = devfs_get_cdevpriv((void **)&file_priv);
 	if (error == ENOENT) {
diff --git a/sys/dev/drm/i915_drv.h b/sys/dev/drm/i915_drv.h
index 3896732b32ec..07af14700a6d 100644
--- a/sys/dev/drm/i915_drv.h
+++ b/sys/dev/drm/i915_drv.h
@@ -307,7 +307,7 @@ typedef struct drm_i915_private {
 		 * Flag if the hardware appears to be wedged.
 		 *
 		 * This is set when attempts to idle the device timeout.
-		 * It prevents command submission from occuring and makes
+		 * It prevents command submission from occurring and makes
 		 * every pending request fail
 		 */
 		int wedged;
diff --git a/sys/dev/drm/mach64_state.c b/sys/dev/drm/mach64_state.c
index 16848c23ac14..a72244fb1fd9 100644
--- a/sys/dev/drm/mach64_state.c
+++ b/sys/dev/drm/mach64_state.c
@@ -709,10 +709,10 @@ static int mach64_dma_dispatch_blit(struct drm_device * dev,
 	 * XXX: This is overkill. The most efficient solution would be having 
 	 * two sets of buffers (one set private for vertex data, the other set 
 	 * client-writable for blits). However that would bring more complexity 
-	 * and would break backward compatability. The solution currently 
+	 * and would break backward compatibility. The solution currently 
 	 * implemented is keeping all buffers private, allowing to secure the
 	 * driver, without increasing complexity at the expense of some speed 
-	 * transfering data.
+	 * transferring data.
 	 */
 	verify_ret = copy_from_user_blit(GETBUFPTR(copy_buf), blit->buf, used);
 
diff --git a/sys/dev/drm/mga_dma.c b/sys/dev/drm/mga_dma.c
index 71775b65b193..b3a7a98a5d07 100644
--- a/sys/dev/drm/mga_dma.c
+++ b/sys/dev/drm/mga_dma.c
@@ -433,7 +433,7 @@ int mga_driver_load(struct drm_device *dev, unsigned long flags)
  * Bootstrap the driver for AGP DMA.
  *
  * \todo
- * Investigate whether there is any benifit to storing the WARP microcode in
+ * Investigate whether there is any benefit to storing the WARP microcode in
  * AGP memory.  If not, the microcode may as well always be put in PCI
  * memory.
  *
diff --git a/sys/dev/drm/mga_drm.h b/sys/dev/drm/mga_drm.h
index 16e89909ae99..2754c934413a 100644
--- a/sys/dev/drm/mga_drm.h
+++ b/sys/dev/drm/mga_drm.h
@@ -108,7 +108,7 @@ __FBSDID("$FreeBSD$");
  */
 #define MGA_NR_SAREA_CLIPRECTS	8
 
-/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+/* 2 heaps (1 for card, 1 for agp), each divided into up to 128
  * regions, subject to a minimum region size of (1<<16) == 64k.
  *
  * Clients may subdivide regions internally, but when sharing between
diff --git a/sys/dev/drm/radeon_cp.c b/sys/dev/drm/radeon_cp.c
index 5d2f4c71623c..be839366d2ac 100644
--- a/sys/dev/drm/radeon_cp.c
+++ b/sys/dev/drm/radeon_cp.c
@@ -231,7 +231,7 @@ void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
 	u32 agp_base_lo = agp_base & 0xffffffff;
 	u32 r6xx_agp_base = (agp_base >> 22) & 0x3ffff;
 
-	/* R6xx/R7xx must be aligned to a 4MB boundry */
+	/* R6xx/R7xx must be aligned to a 4MB boundary */
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
 		RADEON_WRITE(R700_MC_VM_AGP_BASE, r6xx_agp_base);
 	else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
diff --git a/sys/dev/drm/radeon_drm.h b/sys/dev/drm/radeon_drm.h
index 11f2fcb8d8ad..2287ef509c3f 100644
--- a/sys/dev/drm/radeon_drm.h
+++ b/sys/dev/drm/radeon_drm.h
@@ -618,7 +618,7 @@ typedef struct drm_radeon_vertex2 {
 } drm_radeon_vertex2_t;
 
 /* v1.3 - obsoletes drm_radeon_vertex2
- *      - allows arbitarily large cliprect list
+ *      - allows arbitrarily large cliprect list
  *      - allows updating of tcl packet, vector and scalar state
  *      - allows memory-efficient description of state updates
  *      - allows state to be emitted without a primitive
diff --git a/sys/dev/drm/radeon_drv.h b/sys/dev/drm/radeon_drv.h
index e830a83f8054..b4785e0be9eb 100644
--- a/sys/dev/drm/radeon_drv.h
+++ b/sys/dev/drm/radeon_drv.h
@@ -365,7 +365,7 @@ typedef struct drm_radeon_private {
 
 	u32 scratch_ages[5];
 
-	/* starting from here on, data is preserved accross an open */
+	/* starting from here on, data is preserved across an open */
 	uint32_t flags;		/* see radeon_chip_flags */
 	unsigned long fb_aper_offset;
 
diff --git a/sys/dev/drm/radeon_state.c b/sys/dev/drm/radeon_state.c
index b334a885b284..718c7e118641 100644
--- a/sys/dev/drm/radeon_state.c
+++ b/sys/dev/drm/radeon_state.c
@@ -950,7 +950,7 @@ static void radeon_cp_dispatch_clear(struct drm_device * dev,
 	}
 
 	/* hyper z clear */
-	/* no docs available, based on reverse engeneering by Stephane Marchesin */
+	/* no docs available, based on reverse engineering by Stephane Marchesin */
 	if ((flags & (RADEON_DEPTH | RADEON_STENCIL))
 	    && (flags & RADEON_CLEAR_FASTZ)) {
 
@@ -1064,7 +1064,7 @@ static void radeon_cp_dispatch_clear(struct drm_device * dev,
 					/* judging by the first tile offset needed, could possibly
 					   directly address/clear 4x4 tiles instead of 8x2 * 4x4
 					   macro tiles, though would still need clear mask for
-					   right/bottom if truely 4x4 granularity is desired ? */
+					   right/bottom if truly 4x4 granularity is desired ? */
 					OUT_RING(tileoffset * 16);
 					/* the number of tiles to clear */
 					OUT_RING(nrtilesx + 1);
diff --git a/sys/dev/drm/savage_bci.c b/sys/dev/drm/savage_bci.c
index 0f8d66e12898..173993e9f99a 100644
--- a/sys/dev/drm/savage_bci.c
+++ b/sys/dev/drm/savage_bci.c
@@ -555,7 +555,7 @@ int savage_driver_load(struct drm_device *dev, unsigned long chipset)
 }
 
 /*
- * Initalize mappings. On Savage4 and SavageIX the alignment
+ * Initialize mappings. On Savage4 and SavageIX the alignment
  * and size of the aperture is not suitable for automatic MTRR setup
  * in drm_addmap. Therefore we add them manually before the maps are
  * initialized, and tear them down on last close.
diff --git a/sys/dev/drm/savage_drm.h b/sys/dev/drm/savage_drm.h
index c54d2d4cc881..3655b5ec4ebc 100644
--- a/sys/dev/drm/savage_drm.h
+++ b/sys/dev/drm/savage_drm.h
@@ -32,7 +32,7 @@ __FBSDID("$FreeBSD$");
 #ifndef __SAVAGE_SAREA_DEFINES__
 #define __SAVAGE_SAREA_DEFINES__
 
-/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+/* 2 heaps (1 for card, 1 for agp), each divided into up to 128
  * regions, subject to a minimum region size of (1<<16) == 64k.
  *
  * Clients may subdivide regions internally, but when sharing between
diff --git a/sys/dev/drm2/drm_vm.c b/sys/dev/drm2/drm_vm.c
index 3fa2aba54ee1..b7979d912e15 100644
--- a/sys/dev/drm2/drm_vm.c
+++ b/sys/dev/drm2/drm_vm.c
@@ -57,7 +57,7 @@ drm_mmap(struct cdev *kdev, vm_ooffset_t offset, vm_paddr_t *paddr,
 
 	/* d_mmap gets called twice, we can only reference file_priv during
 	 * the first call.  We need to assume that if error is EBADF the
-	 * call was succesful and the client is authenticated.
+	 * call was successful and the client is authenticated.
 	 */
 	error = devfs_get_cdevpriv((void **)&file_priv);
 	if (error == ENOENT) {
diff --git a/sys/dev/drm2/i915/i915_drm.h b/sys/dev/drm2/i915/i915_drm.h
index c6f0be3ee8e8..c9ccb35a65ab 100644
--- a/sys/dev/drm2/i915/i915_drm.h
+++ b/sys/dev/drm2/i915/i915_drm.h
@@ -735,7 +735,7 @@ struct drm_i915_gem_caching {
 	__u32 handle;
 
 	/**
-	 * Cacheing level to apply or return value
+	 * Caching level to apply or return value
 	 *
 	 * bits0-15 are for generic caching control (i.e. the above defined
 	 * values). bits16-31 are reserved for platform-specific variations
diff --git a/sys/dev/drm2/i915/i915_drv.h b/sys/dev/drm2/i915/i915_drv.h
index 2dff53c0886a..3325aa153b3b 100644
--- a/sys/dev/drm2/i915/i915_drv.h
+++ b/sys/dev/drm2/i915/i915_drv.h
@@ -1129,7 +1129,7 @@ struct drm_i915_gem_request {
 	/** GEM sequence number associated with this request. */
 	uint32_t seqno;
 
-	/** Postion in the ringbuffer of the end of the request */
+	/** Position in the ringbuffer of the end of the request */
 	u32 tail;
 
 	/** Time at which this request was emitted, in jiffies. */
diff --git a/sys/dev/drm2/i915/i915_gem_gtt.c b/sys/dev/drm2/i915/i915_gem_gtt.c
index f0e7f7a977a9..5cd50ad96840 100644
--- a/sys/dev/drm2/i915/i915_gem_gtt.c
+++ b/sys/dev/drm2/i915/i915_gem_gtt.c
@@ -550,7 +550,7 @@ void i915_gem_init_global_gtt(struct drm_device *dev,
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 
-	/* Substract the guard page ... */
+	/* Subtract the guard page ... */
 	drm_mm_init(&dev_priv->mm.gtt_space, start, end - start - PAGE_SIZE);
 	if (!HAS_LLC(dev))
 		dev_priv->mm.gtt_space.color_adjust = i915_gtt_color_adjust;
diff --git a/sys/dev/drm2/i915/intel_display.c b/sys/dev/drm2/i915/intel_display.c
index 363cbf2b3c17..0a03f228bfdc 100644
--- a/sys/dev/drm2/i915/intel_display.c
+++ b/sys/dev/drm2/i915/intel_display.c
@@ -3403,7 +3403,7 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
 	 * There seems to be a race in PCH platform hw (at least on some
 	 * outputs) where an enabled pipe still completes any pageflip right
 	 * away (as if the pipe is off) instead of waiting for vblank. As soon
-	 * as the first vblank happend, everything works as expected. Hence just
+	 * as the first vblank happened, everything works as expected. Hence just
 	 * wait for one vblank before returning to avoid strange things
 	 * happening.
 	 */
@@ -3480,7 +3480,7 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
 	 * There seems to be a race in PCH platform hw (at least on some
 	 * outputs) where an enabled pipe still completes any pageflip right
 	 * away (as if the pipe is off) instead of waiting for vblank. As soon
-	 * as the first vblank happend, everything works as expected. Hence just
+	 * as the first vblank happened, everything works as expected. Hence just
 	 * wait for one vblank before returning to avoid strange things
 	 * happening.
 	 */
diff --git a/sys/dev/drm2/radeon/atombios.h b/sys/dev/drm2/radeon/atombios.h
index 8ef8196fb301..16119f442ca0 100644
--- a/sys/dev/drm2/radeon/atombios.h
+++ b/sys/dev/drm2/radeon/atombios.h
@@ -1797,7 +1797,7 @@ typedef struct _GET_ENGINE_CLOCK_PARAMETERS
 // Following Structures and constant may be obsolete
 /****************************************************************************/	
 //Maxium 8 bytes,the data read in will be placed in the parameter space.
-//Read operaion successeful when the paramter space is non-zero, otherwise read operation failed
+//Read operaion successeful when the parameter space is non-zero, otherwise read operation failed
 typedef struct _READ_EDID_FROM_HW_I2C_DATA_PARAMETERS
 {
   USHORT    usPrescale;         //Ratio between Engine clock and I2C clock
@@ -4725,14 +4725,14 @@ ucUMAChannelNumber:      	        System memory channel numbers.
 ulCSR_M3_ARB_CNTL_DEFAULT[10]:    Arrays with values for CSR M3 arbiter for default
 ulCSR_M3_ARB_CNTL_UVD[10]:        Arrays with values for CSR M3 arbiter for UVD playback.
 ulCSR_M3_ARB_CNTL_FS3D[10]:       Arrays with values for CSR M3 arbiter for Full Screen 3D applications.
-sAvail_SCLK[5]:                   Arrays to provide availabe list of SLCK and corresponding voltage, order from low to high  
+sAvail_SCLK[5]:                   Arrays to provide available list of SLCK and corresponding voltage, order from low to high  
 ulGMCRestoreResetTime:            GMC power restore and GMC reset time to calculate data reconnection latency. Unit in ns. 
 ulMinimumNClk:                    Minimum NCLK speed among all NB-Pstates to calcualte data reconnection latency. Unit in 10kHz. 
 ulIdleNClk:                       NCLK speed while memory runs in self-refresh state. Unit in 10kHz.
 ulDDR_DLL_PowerUpTime:            DDR PHY DLL power up time. Unit in ns.
 ulDDR_PLL_PowerUpTime:            DDR PHY PLL power up time. Unit in ns.
-usPCIEClkSSPercentage:            PCIE Clock Spred Spectrum Percentage in unit 0.01%; 100 mean 1%.
-usPCIEClkSSType:                  PCIE Clock Spred Spectrum Type. 0 for Down spread(default); 1 for Center spread.
+usPCIEClkSSPercentage:            PCIE Clock Spread Spectrum Percentage in unit 0.01%; 100 mean 1%.
+usPCIEClkSSType:                  PCIE Clock Spread Spectrum Type. 0 for Down spread(default); 1 for Center spread.
 usLvdsSSPercentage:               LVDS panel ( not include eDP ) Spread Spectrum Percentage in unit of 0.01%, =0, use VBIOS default setting. 
 usLvdsSSpreadRateIn10Hz:          LVDS panel ( not include eDP ) Spread Spectrum frequency in unit of 10Hz, =0, use VBIOS default setting. 
 usHDMISSPercentage:               HDMI Spread Spectrum Percentage in unit 0.01%; 100 mean 1%,  =0, use VBIOS default setting. 
@@ -4926,7 +4926,7 @@ ucUMAChannelNumber:      	        System memory channel numbers.
 ulCSR_M3_ARB_CNTL_DEFAULT[10]:    Arrays with values for CSR M3 arbiter for default
 ulCSR_M3_ARB_CNTL_UVD[10]:        Arrays with values for CSR M3 arbiter for UVD playback.
 ulCSR_M3_ARB_CNTL_FS3D[10]:       Arrays with values for CSR M3 arbiter for Full Screen 3D applications.
-sAvail_SCLK[5]:                   Arrays to provide availabe list of SLCK and corresponding voltage, order from low to high  
+sAvail_SCLK[5]:                   Arrays to provide available list of SLCK and corresponding voltage, order from low to high  
 ulGMCRestoreResetTime:            GMC power restore and GMC reset time to calculate data reconnection latency. Unit in ns. 
 ulMinimumNClk:                    Minimum NCLK speed among all NB-Pstates to calcualte data reconnection latency. Unit in 10kHz. 
 ulIdleNClk:                       NCLK speed while memory runs in self-refresh state. Unit in 10kHz.
@@ -7600,7 +7600,7 @@ typedef struct _ATOM_PPLIB_SUMO_CLOCK_INFO{
       UCHAR  ucEngineClockHigh; //clockfrequency >> 16. 
       UCHAR  vddcIndex;         //2-bit vddc index;
       USHORT tdpLimit;
-      //please initalize to 0
+      //please initialize to 0
       USHORT rsv1;
       //please initialize to 0s
       ULONG rsv2[2];
@@ -7979,8 +7979,8 @@ typedef struct {
 typedef struct {
   AMD_ACPI_DESCRIPTION_HEADER SHeader;
   UCHAR TableUUID[16];    //0x24
-  ULONG VBIOSImageOffset; //0x34. Offset to the first GOP_VBIOS_CONTENT block from the beginning of the stucture.
-  ULONG Lib1ImageOffset;  //0x38. Offset to the first GOP_LIB1_CONTENT block from the beginning of the stucture.
+  ULONG VBIOSImageOffset; //0x34. Offset to the first GOP_VBIOS_CONTENT block from the beginning of the structure.
+  ULONG Lib1ImageOffset;  //0x38. Offset to the first GOP_LIB1_CONTENT block from the beginning of the structure.
   ULONG Reserved[4];      //0x3C
 }UEFI_ACPI_VFCT;
 
diff --git a/sys/dev/drm2/radeon/evergreen.c b/sys/dev/drm2/radeon/evergreen.c
index 4643d62f916c..67e943fe5ef7 100644
--- a/sys/dev/drm2/radeon/evergreen.c
+++ b/sys/dev/drm2/radeon/evergreen.c
@@ -105,7 +105,7 @@ void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 	v = (ctl & PCIEM_CTL_MAX_READ_REQUEST) >> 12;
 
 	/* if bios or OS sets MAX_READ_REQUEST_SIZE to an invalid value, fix it
-	 * to avoid hangs or perfomance issues
+	 * to avoid hangs or performance issues
 	 */
 	if ((v == 0) || (v == 6) || (v == 7)) {
 		ctl &= ~PCIEM_CTL_MAX_READ_REQUEST;
diff --git a/sys/dev/drm2/radeon/radeon_device.c b/sys/dev/drm2/radeon/radeon_device.c
index 73b2f4c51ada..76b4cd7b497a 100644
--- a/sys/dev/drm2/radeon/radeon_device.c
+++ b/sys/dev/drm2/radeon/radeon_device.c
@@ -541,7 +541,7 @@ bool radeon_boot_test_post_card(struct radeon_device *rdev)
  * Allocate the dummy page used by the driver (all asics).
  * This dummy page is used by the driver as a filler for gart entries
  * when pages are taken out of the GART
- * Returns 0 on sucess, -ENOMEM on failure.
+ * Returns 0 on success, -ENOMEM on failure.
  */
 int radeon_dummy_page_init(struct radeon_device *rdev)
 {
@@ -724,7 +724,7 @@ static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
  *
  * Initializes the driver info and register access callbacks for the
  * ATOM interpreter (r4xx+).
- * Returns 0 on sucess, -ENOMEM on failure.
+ * Returns 0 on success, -ENOMEM on failure.
  * Called at driver startup.
  */
 int radeon_atombios_init(struct radeon_device *rdev)
@@ -793,7 +793,7 @@ void radeon_atombios_fini(struct radeon_device *rdev)
  * @rdev: radeon_device pointer
  *
  * Initializes the driver info for combios (r1xx-r3xx).
- * Returns 0 on sucess.
+ * Returns 0 on success.
  * Called at driver startup.
  */
 int radeon_combios_init(struct radeon_device *rdev)
diff --git a/sys/dev/drm2/radeon/radeon_fence.c b/sys/dev/drm2/radeon/radeon_fence.c
index 21c354115fc5..6b1763bfc571 100644
--- a/sys/dev/drm2/radeon/radeon_fence.c
+++ b/sys/dev/drm2/radeon/radeon_fence.c
@@ -613,7 +613,7 @@ int radeon_fence_wait_any(struct radeon_device *rdev,
 		}
 
 		if (fences[i]->seq == RADEON_FENCE_SIGNALED_SEQ) {
-			/* something was allready signaled */
+			/* something was already signaled */
 			return 0;
 		}
 
@@ -644,7 +644,7 @@ int radeon_fence_wait_next_locked(struct radeon_device *rdev, int ring)
 	seq = atomic64_read(&rdev->fence_drv[ring].last_seq) + 1ULL;
 	if (seq >= rdev->fence_drv[ring].sync_seq[ring]) {
 		/* nothing to wait for, last_seq is
-		   already the last emited fence */
+		   already the last emitted fence */
 		return -ENOENT;
 	}
 	return radeon_fence_wait_seq(rdev, seq, ring, false, false);
diff --git a/sys/dev/drm2/radeon/radeon_gart.c b/sys/dev/drm2/radeon/radeon_gart.c
index 3dae6ae81cff..cf5609aaf3d4 100644
--- a/sys/dev/drm2/radeon/radeon_gart.c
+++ b/sys/dev/drm2/radeon/radeon_gart.c
@@ -698,7 +698,7 @@ struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev,
 	if (vm->fence && vm->fence == rdev->vm_manager.active[vm->id])
 		return NULL;
 
-	/* we definately need to flush */
+	/* we definitely need to flush */
 	radeon_fence_unref(&vm->last_flush);
 
 	/* skip over VMID 0, since it is the system VM */
diff --git a/sys/dev/drm2/radeon/radeon_gem.c b/sys/dev/drm2/radeon/radeon_gem.c
index 2a5510126498..a96ab471dc2a 100644
--- a/sys/dev/drm2/radeon/radeon_gem.c
+++ b/sys/dev/drm2/radeon/radeon_gem.c
@@ -462,7 +462,7 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
 	/* !! DONT REMOVE !!
 	 * We don't support vm_id yet, to be sure we don't have have broken
 	 * userspace, reject anyone trying to use non 0 value thus moving
-	 * forward we can use those fields without breaking existant userspace
+	 * forward we can use those fields without breaking existent userspace
 	 */
 	if (args->vm_id) {
 		args->operation = RADEON_VA_RESULT_ERROR;
diff --git a/sys/dev/drm2/radeon/radeon_kms.c b/sys/dev/drm2/radeon/radeon_kms.c
index 29e19df6d698..b86e545d6725 100644
--- a/sys/dev/drm2/radeon/radeon_kms.c
+++ b/sys/dev/drm2/radeon/radeon_kms.c
@@ -611,7 +611,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
  *
  * Gets the timestamp on the requested crtc based on the
  * scanout position.  (all asics).
- * Returns postive status flags on success, negative error on failure.
+ * Returns positive status flags on success, negative error on failure.
  */
 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
 				    int *max_error,
diff --git a/sys/dev/drm2/radeon/radeon_legacy_crtc.c b/sys/dev/drm2/radeon/radeon_legacy_crtc.c
index 282f2005bdc4..9d6bb57b735f 100644
--- a/sys/dev/drm2/radeon/radeon_legacy_crtc.c
+++ b/sys/dev/drm2/radeon/radeon_legacy_crtc.c
@@ -76,7 +76,7 @@ static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
 	if ((rdev->family == CHIP_RS100) ||
 	    (rdev->family == CHIP_RS200)) {
 		/* This is to workaround the asic bug for RMX, some versions
-		   of BIOS dosen't have this register initialized correctly. */
+		   of BIOS doesn't have this register initialized correctly. */
 		crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN;
 	}
 
diff --git a/sys/dev/drm2/ttm/ttm_page_alloc_dma.c b/sys/dev/drm2/ttm/ttm_page_alloc_dma.c
index a5c6fedebbd2..21dc287dfe83 100644
--- a/sys/dev/drm2/ttm/ttm_page_alloc_dma.c
+++ b/sys/dev/drm2/ttm/ttm_page_alloc_dma.c
@@ -82,7 +82,7 @@ enum pool_type {
  *  - dma32 (up to 2^32 - so up 4GB):
  *      - write combined, uncached, cached.
  * for each 'struct device'. The 'cached' is for pages that are actively used.
- * The other ones can be shrunk by the shrinker API if neccessary.
+ * The other ones can be shrunk by the shrinker API if necessary.
  * @pools: The 'struct device->dma_pools' link.
  * @type: Type of the pool
  * @lock: Protects the inuse_list and free_list from concurrnet access. Must be
@@ -801,7 +801,7 @@ static int ttm_dma_page_pool_fill_locked(struct dma_pool *pool,
 
 		spin_unlock_irqrestore(&pool->lock, *irq_flags);
 
-		/* Returns how many more are neccessary to fulfill the
+		/* Returns how many more are necessary to fulfill the
 		 * request. */
 		r = ttm_dma_pool_alloc_new_pages(pool, &d_pages, count);
 
diff --git a/sys/dev/ed/if_edreg.h b/sys/dev/ed/if_edreg.h
index ed2dbbe7eda5..84064bd03079 100644
--- a/sys/dev/ed/if_edreg.h
+++ b/sys/dev/ed/if_edreg.h
@@ -793,7 +793,7 @@ struct ed_ring	{
 #define ED_3COM_PSPR		1
 
 /*
- *	Drq Timer Register. Determines number of bytes to be transfered during
+ *	Drq Timer Register. Determines number of bytes to be transferred during
  *		a DMA burst.
  */
 #define ED_3COM_DQTR		2
diff --git a/sys/dev/esp/esp_pci.c b/sys/dev/esp/esp_pci.c
index cd88f6bbfa5a..bd85d8e6d32d 100644
--- a/sys/dev/esp/esp_pci.c
+++ b/sys/dev/esp/esp_pci.c
@@ -292,7 +292,7 @@ esp_pci_attach(device_t dev)
 	}
 	error = bus_dmamap_create(esc->sc_xferdmat, 0, &esc->sc_xferdmam);
 	if (error != 0) {
-		device_printf(dev, "cannnot create transfer DMA map\n");
+		device_printf(dev, "cannot create transfer DMA map\n");
 		goto fail_xferdmat;
 	}
 
diff --git a/sys/dev/esp/ncr53c9xvar.h b/sys/dev/esp/ncr53c9xvar.h
index 97b724156a31..c5c8343c47a5 100644
--- a/sys/dev/esp/ncr53c9xvar.h
+++ b/sys/dev/esp/ncr53c9xvar.h
@@ -102,7 +102,7 @@
 /*
  * ECB. Holds additional information for each SCSI command Comments: We
  * need a separate scsi command block because we may need to overwrite it
- * with a request sense command.  Basicly, we refrain from fiddling with
+ * with a request sense command.  Basically, we refrain from fiddling with
  * the ccb union (except do the expected updating of return values).
  * We'll generally update: ccb->ccb_h.status and ccb->csio.{resid,
  * scsi_status,sense_data}.
diff --git a/sys/dev/et/if_et.c b/sys/dev/et/if_et.c
index 97fbdcf19495..67cddc9e0fc2 100644
--- a/sys/dev/et/if_et.c
+++ b/sys/dev/et/if_et.c
@@ -1395,7 +1395,7 @@ et_start_locked(struct ifnet *ifp)
 	 * Driver does not request TX completion interrupt for every
 	 * queued frames to prevent generating excessive interrupts.
 	 * This means driver may wait for TX completion interrupt even
-	 * though some frames were sucessfully transmitted.  Reclaiming
+	 * though some frames were successfully transmitted.  Reclaiming
 	 * transmitted frames will ensure driver see all available
 	 * descriptors.
 	 */
diff --git a/sys/dev/et/if_etreg.h b/sys/dev/et/if_etreg.h
index a31492136722..52fa930d91ed 100644
--- a/sys/dev/et/if_etreg.h
+++ b/sys/dev/et/if_etreg.h
@@ -73,7 +73,7 @@
 #define	ET_PCIV_ACK_LATENCY_256		416
 
 #define	ET_PCIR_REPLAY_TIMER		0xC2
-#define	ET_REPLAY_TIMER_RX_L0S_ADJ	250	/* XXX infered from default */
+#define	ET_REPLAY_TIMER_RX_L0S_ADJ	250	/* XXX inferred from default */
 #define	ET_PCIV_REPLAY_TIMER_128	(711 + ET_REPLAY_TIMER_RX_L0S_ADJ)
 #define	ET_PCIV_REPLAY_TIMER_256	(1248 + ET_REPLAY_TIMER_RX_L0S_ADJ)
 
diff --git a/sys/dev/etherswitch/e6000sw/e6000sw.c b/sys/dev/etherswitch/e6000sw/e6000sw.c
index ca4ec3fcc9e2..ae552b81728e 100644
--- a/sys/dev/etherswitch/e6000sw/e6000sw.c
+++ b/sys/dev/etherswitch/e6000sw/e6000sw.c
@@ -805,7 +805,7 @@ e6000sw_setup(device_t dev, e6000sw_softc_t *sc)
 	e6000sw_writereg(sc, REG_GLOBAL2, MGMT_EN_2x, MGMT_EN_ALL);
 	e6000sw_writereg(sc, REG_GLOBAL2, MGMT_EN_0x, MGMT_EN_ALL);
 
-	/* Disable Remote Managment */
+	/* Disable Remote Management */
 	e6000sw_writereg(sc, REG_GLOBAL, SWITCH_GLOBAL_CONTROL2, 0);
 
 	/* Disable loopback filter and flow control messages */
diff --git a/sys/dev/fatm/if_fatm.c b/sys/dev/fatm/if_fatm.c
index 83f43fd4ed52..a530a44327d1 100644
--- a/sys/dev/fatm/if_fatm.c
+++ b/sys/dev/fatm/if_fatm.c
@@ -1664,7 +1664,7 @@ fatm_intr(void *p)
  * is stopped the stopping function will broadcast the cv. All threads will
  * find that the interface has been stopped and return.
  *
- * Aquiring of the buffer is done by the fatm_getstat() function. The freeing
+ * Acquiring of the buffer is done by the fatm_getstat() function. The freeing
  * must be done by the caller when he has finished using the buffer.
  */
 static void
@@ -2105,7 +2105,7 @@ fatm_start(struct ifnet *ifp)
 }
 
 /*
- * VCC managment
+ * VCC management
  *
  * This may seem complicated. The reason for this is, that we need an
  * asynchronuous open/close for the NATM VCCs because our ioctl handler
@@ -2116,7 +2116,7 @@ fatm_start(struct ifnet *ifp)
 
 /*
  * Command the card to open/close a VC.
- * Return the queue entry for waiting if we are succesful.
+ * Return the queue entry for waiting if we are successful.
  */
 static struct cmdqueue *
 fatm_start_vcc(struct fatm_softc *sc, u_int vpi, u_int vci, uint32_t cmd,
@@ -2849,7 +2849,7 @@ fatm_attach(device_t dev)
 	sc->memt = rman_get_bustag(sc->memres);
 
 	/*
-	 * Convert endianess of slave access
+	 * Convert endianness of slave access
 	 */
 	cfg = pci_read_config(dev, FATM_PCIR_MCTL, 1);
 	cfg |= FATM_PCIM_SWAB;
diff --git a/sys/dev/fatm/if_fatmreg.h b/sys/dev/fatm/if_fatmreg.h
index d488dbfda5bf..d6eb0074bf2a 100644
--- a/sys/dev/fatm/if_fatmreg.h
+++ b/sys/dev/fatm/if_fatmreg.h
@@ -63,7 +63,7 @@ enum {
  * status word to PENDING. The card sets it to COMPLETE upon completion of
  * the transmit/receive or command. An unused queue entry contains FREE.
  * The ERROR can be ored into the COMPLETE. Note, that there are circumstances
- * when ERROR is set without COMPLETE beeing set (when you try to activate
+ * when ERROR is set without COMPLETE being set (when you try to activate
  * a bad VCI like, for example, VCI 0).
  */
 enum {
diff --git a/sys/dev/fatm/if_fatmvar.h b/sys/dev/fatm/if_fatmvar.h
index bcd87599eaba..ba064fe2300e 100644
--- a/sys/dev/fatm/if_fatmvar.h
+++ b/sys/dev/fatm/if_fatmvar.h
@@ -118,7 +118,7 @@ typedef void (*completion_cb)(struct fatm_softc *, struct cmdqueue *);
 struct cmdqueue {		/* command queue element */
 	struct fqelem	q;
 	completion_cb	cb;	/* call on command completion */
-	int		error;	/* set if error occured */
+	int		error;	/* set if error occurred */
 };
 
 /*
diff --git a/sys/dev/fb/machfb.c b/sys/dev/fb/machfb.c
index 03e209d79fb3..42824835fcb9 100644
--- a/sys/dev/fb/machfb.c
+++ b/sys/dev/fb/machfb.c
@@ -1278,7 +1278,7 @@ machfb_pci_attach(device_t dev)
 	 * Test whether the aperture is byte swapped or not, set
 	 * va_window and va_window_size as appropriate.  Note that
 	 * the aperture could be mapped either big or little endian
-	 * independently of the endianess of the host so this has
+	 * independently of the endianness of the host so this has
 	 * to be a runtime test.
 	 */
 	p32 = (uint32_t *)adp->va_buffer;
diff --git a/sys/dev/fb/splash.c b/sys/dev/fb/splash.c
index ac005887efdb..4a7226f9ce42 100644
--- a/sys/dev/fb/splash.c
+++ b/sys/dev/fb/splash.c
@@ -115,7 +115,7 @@ splash_register(splash_decoder_t *decoder)
 
 	if (splash_adp != NULL) {
 		/*
-		 * If the video card has aleady been initialized, test
+		 * If the video card has already been initialized, test
 		 * this decoder immediately.
 		 */
 		error = splash_test(decoder);
diff --git a/sys/dev/fb/vga.c b/sys/dev/fb/vga.c
index 83b969470b5e..39078c6ccd8c 100644
--- a/sys/dev/fb/vga.c
+++ b/sys/dev/fb/vga.c
@@ -948,7 +948,7 @@ probe_adapters(void)
 
     /* 
      * Locate display adapters. 
-     * The AT architecture supports upto two adapters. `syscons' allows
+     * The AT architecture supports up to two adapters. `syscons' allows
      * the following combinations of adapters: 
      *     1) MDA + CGA
      *     2) MDA + EGA/VGA color 
@@ -1134,7 +1134,7 @@ probe_adapters(void)
 		case COMP_DIFFERENT:
 		default:
 		    /*
-		     * Don't use the paramter table in BIOS. It doesn't
+		     * Don't use the parameter table in BIOS. It doesn't
 		     * look familiar to us. Video mode switching is allowed
 		     * only if the new mode is the same as or based on
 		     * the initial mode. 
diff --git a/sys/dev/fdc/fdc.c b/sys/dev/fdc/fdc.c
index e6c2bf4a0e53..699ccbb2ca64 100644
--- a/sys/dev/fdc/fdc.c
+++ b/sys/dev/fdc/fdc.c
@@ -2202,7 +2202,7 @@ fd_probe(device_t dev)
 				/* anything responding? */
 				if (fdc_sense_int(fdc, &st0, NULL) == 0 &&
 				    (st0 & NE7_ST0_EC) == 0)
-					break; /* already probed succesfully */
+					break; /* already probed successfully */
 			}
 		}
 	}
diff --git a/sys/dev/fdt/fdt_static_dtb.S b/sys/dev/fdt/fdt_static_dtb.S
index 96a564a0c447..ae1fc03e5b4a 100644
--- a/sys/dev/fdt/fdt_static_dtb.S
+++ b/sys/dev/fdt/fdt_static_dtb.S
@@ -38,7 +38,7 @@
 /*
  * The device tree blob must be aligned at 8-bytes boundary. Use
  * gas-specific 'balign' extension to ensure the same alignment behaviour on
- * all archs (the .align directive meaning can vary accross gas arch
+ * all archs (the .align directive meaning can vary across gas arch
  * variations).
  */
 .balign 8
diff --git a/sys/dev/fe/if_fe_isa.c b/sys/dev/fe/if_fe_isa.c
index 8dc7cba0488a..092f30eef6df 100644
--- a/sys/dev/fe/if_fe_isa.c
+++ b/sys/dev/fe/if_fe_isa.c
@@ -364,7 +364,7 @@ fe_probe_fmv(device_t dev)
  *	u_short const * func (struct fe_softc * sc, u_char const * eeprom);
  *
  * where eeprom is a pointer to an array of 32 byte data read from the
- * config EEPROM on the board.  It retuns an IRQ mapping table for the
+ * config EEPROM on the board.  It returns an IRQ mapping table for the
  * board, when the corresponding implementation is detected.  It
  * returns a NULL otherwise.
  * 
diff --git a/sys/dev/fe/mb86960.h b/sys/dev/fe/mb86960.h
index 1272dde68331..0482783f7c52 100644
--- a/sys/dev/fe/mb86960.h
+++ b/sys/dev/fe/mb86960.h
@@ -44,7 +44,7 @@
  * documents..
  */
 
-/* Data Link Control Registrs, on invaliant port addresses.  */
+/* Data Link Control Registers, on invaliant port addresses.  */
 #define FE_DLCR0	0
 #define FE_DLCR1	1
 #define FE_DLCR2	2
diff --git a/sys/dev/firewire/firewire.c b/sys/dev/firewire/firewire.c
index 72341887f46a..f691c9dd433f 100644
--- a/sys/dev/firewire/firewire.c
+++ b/sys/dev/firewire/firewire.c
@@ -1584,7 +1584,7 @@ fw_explore_node(struct fw_device *dfwdev)
 		 * speed map value.
 		 * 1394a-2000 compliant devices only use
 		 * the Bus Info Block link spd value, so
-		 * ignore the speed map alltogether. SWB
+		 * ignore the speed map altogether. SWB
 		 */
 		if (binfo->link_spd == FWSPD_S100 /* 0 */) {
 			device_printf(fc->bdev, "%s: "
diff --git a/sys/dev/firewire/fwdev.c b/sys/dev/firewire/fwdev.c
index cebd28ad876a..fbaa9bb1f439 100644
--- a/sys/dev/firewire/fwdev.c
+++ b/sys/dev/firewire/fwdev.c
@@ -349,7 +349,7 @@ readloop:
 		}
 	}
 	if (ir->stproc == NULL) {
-		/* no data avaliable */
+		/* no data available */
 		if (slept == 0) {
 			slept = 1;
 			ir->flag |= FWXFERQ_WAKEUP;
diff --git a/sys/dev/firewire/fwohci.c b/sys/dev/firewire/fwohci.c
index 70134af686e6..ac7fa5290f79 100644
--- a/sys/dev/firewire/fwohci.c
+++ b/sys/dev/firewire/fwohci.c
@@ -511,7 +511,7 @@ fwohci_reset(struct fwohci_softc *sc, device_t dev)
 		OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN);
 	}
 
-	/* FLUSH FIFO and reset Transmitter/Reciever */
+	/* FLUSH FIFO and reset Transmitter/Receiver */
 	OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
 	if (firewire_debug)
 		device_printf(dev, "resetting OHCI...");
@@ -692,7 +692,7 @@ fwohci_init(struct fwohci_softc *sc, device_t dev)
 	sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4);
 #endif
 
-/* SID recieve buffer must align 2^11 */
+/* SID receive buffer must align 2^11 */
 #define	OHCI_SIDSIZE	(1 << 11)
 	sc->sid_buf = fwdma_malloc(&sc->fc, OHCI_SIDSIZE, OHCI_SIDSIZE,
 	    &sc->sid_dma, BUS_DMA_WAITOK | BUS_DMA_COHERENT);
@@ -929,7 +929,7 @@ txloop:
 			OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len);
  	FWOHCI_DMA_WRITE(db->db.desc.addr, 0);
  	FWOHCI_DMA_WRITE(db->db.desc.res, 0);
-/* Specify bound timer of asy. responce */
+/* Specify bound timer of asy. response */
 	if (&sc->atrs == dbch) {
  		FWOHCI_DMA_WRITE(db->db.desc.res,
 			 (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13));
@@ -1748,7 +1748,7 @@ fwohci_stop(struct fwohci_softc *sc, device_t dev)
 			| OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS
 			| OHCI_INT_PHY_BUS_R);
 
-/* FLUSH FIFO and reset Transmitter/Reciever */
+/* FLUSH FIFO and reset Transmitter/Receiver */
 	OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET);
 #endif
 
@@ -2208,7 +2208,7 @@ fwohci_rbuf_update(struct fwohci_softc *sc, int dmach)
 				ir->bnpacket, BUS_DMASYNC_POSTREAD);
 		} else {
 			/* XXX */
-			printf("fwohci_rbuf_update: this shouldn't happend\n");
+			printf("fwohci_rbuf_update: this shouldn't happened\n");
 		}
 
 		STAILQ_REMOVE_HEAD(&ir->stdma, link);
diff --git a/sys/dev/firewire/if_fwip.c b/sys/dev/firewire/if_fwip.c
index 0617a9c1cc07..0a958b2b2c0d 100644
--- a/sys/dev/firewire/if_fwip.c
+++ b/sys/dev/firewire/if_fwip.c
@@ -739,7 +739,7 @@ fwip_stream_input(struct fw_xferq *xferq)
 		/*
 		 * We must have a GASP header - leave the
 		 * encapsulation sanity checks to the generic
-		 * code. Remeber that we also have the firewire async
+		 * code. Remember that we also have the firewire async
 		 * stream header even though that isn't accounted for
 		 * in mode.stream.len.
 		 */
diff --git a/sys/dev/firewire/sbp_targ.c b/sys/dev/firewire/sbp_targ.c
index bd7e924f40d1..27e98432fcd4 100644
--- a/sys/dev/firewire/sbp_targ.c
+++ b/sys/dev/firewire/sbp_targ.c
@@ -1031,7 +1031,7 @@ sbp_targ_pt_done(struct fw_xfer *xfer)
 	}
 	orbi->refcount++;
 /*
- * Set endianess here so we don't have 
+ * Set endianness here so we don't have 
  * to deal with is later
  */
 	for (i = 0, pt = orbi->page_table; i < orbi->orb4.data_size; i++, pt++) {
diff --git a/sys/dev/fxp/if_fxp.c b/sys/dev/fxp/if_fxp.c
index dc9181758a30..543eba9c91f5 100644
--- a/sys/dev/fxp/if_fxp.c
+++ b/sys/dev/fxp/if_fxp.c
@@ -1263,7 +1263,7 @@ fxp_eeprom_putword(struct fxp_softc *sc, int offset, uint16_t data)
  *
  * 559's can have either 64-word or 256-word EEPROMs, the 558
  * datasheet only talks about 64-word EEPROMs, and the 557 datasheet
- * talks about the existance of 16 to 256 word EEPROMs.
+ * talks about the existence of 16 to 256 word EEPROMs.
  *
  * The only known sizes are 64 and 256, where the 256 version is used
  * by CardBus cards to store CIS information.
@@ -2090,7 +2090,7 @@ fxp_update_stats(struct fxp_softc *sc)
 		    le32toh(sp->rx_rnr_errors) +
 		    le32toh(sp->rx_overrun_errors));
 		/*
-		 * If any transmit underruns occured, bump up the transmit
+		 * If any transmit underruns occurred, bump up the transmit
 		 * threshold by another 512 bytes (64 * 8).
 		 */
 		if (sp->tx_underruns) {
@@ -2141,7 +2141,7 @@ fxp_tick(void *xsc)
 	 * then assume the receiver has locked up and attempt to clear
 	 * the condition by reprogramming the multicast filter. This is
 	 * a work-around for a bug in the 82557 where the receiver locks
-	 * up if it gets certain types of garbage in the syncronization
+	 * up if it gets certain types of garbage in the synchronization
 	 * bits prior to the packet header. This bug is supposed to only
 	 * occur in 10Mbps mode, but has been seen to occur in 100Mbps
 	 * mode as well (perhaps due to a 10/100 speed transition).
diff --git a/sys/dev/fxp/rcvbundl.h b/sys/dev/fxp/rcvbundl.h
index 2510f420b6fd..dac793df56e6 100644
--- a/sys/dev/fxp/rcvbundl.h
+++ b/sys/dev/fxp/rcvbundl.h
@@ -62,7 +62,7 @@ rcvbundl.h file given above).
 *  driver can change algorithm.
 *
 *  CPUSAVER_DWORD - This is the location of the instruction that loads
-*    the dead-man timer with its inital value.  By writing a 16-bit
+*    the dead-man timer with its initial value.  By writing a 16-bit
 *    value to the low word of this instruction, the driver can change
 *    the timer value.  The current default is either x600 or x800;
 *    experiments show that the value probably should stay within the
diff --git a/sys/dev/hatm/if_hatm.c b/sys/dev/hatm/if_hatm.c
index c34ee0e91075..e87b79f7ba96 100644
--- a/sys/dev/hatm/if_hatm.c
+++ b/sys/dev/hatm/if_hatm.c
@@ -557,7 +557,7 @@ hatm_init_bus_width(struct hatm_softc *sc)
 }
 
 /*
- * 4.6 Set Host Endianess
+ * 4.6 Set Host Endianness
  */
 static void
 hatm_init_endianess(struct hatm_softc *sc)
diff --git a/sys/dev/hatm/if_hatm_rx.c b/sys/dev/hatm/if_hatm_rx.c
index af0b925410ff..c12ec6e9e709 100644
--- a/sys/dev/hatm/if_hatm_rx.c
+++ b/sys/dev/hatm/if_hatm_rx.c
@@ -178,7 +178,7 @@ hatm_rx(struct hatm_softc *sc, u_int cid, u_int flags, struct mbuf *m0,
 	if (vcc->param.aal == ATMIO_AAL_5) {
 		/*
 		 * Need to remove padding and the trailer. The trailer
-		 * may be split accross buffers according to 2.10.1.2
+		 * may be split across buffers according to 2.10.1.2
 		 * Assume that mbufs sizes are even (buffer sizes and cell
 		 * payload sizes are) and that there are no empty mbufs.
 		 */
diff --git a/sys/dev/hatm/if_hatm_tx.c b/sys/dev/hatm/if_hatm_tx.c
index d0a28bad679a..8d64908a718a 100644
--- a/sys/dev/hatm/if_hatm_tx.c
+++ b/sys/dev/hatm/if_hatm_tx.c
@@ -123,7 +123,7 @@ hatm_alloc_tpd(struct hatm_softc *sc, u_int flags)
 			return (NULL);
 	}
 
-	/* make it beeing used */
+	/* make it being used */
 	t = SLIST_FIRST(&sc->tpd_free);
 	KASSERT(t != NULL, ("tpd botch"));
 	SLIST_REMOVE_HEAD(&sc->tpd_free, link);
diff --git a/sys/dev/hifn/hifn7751var.h b/sys/dev/hifn/hifn7751var.h
index fcae4af554c7..c5e8a8b73831 100644
--- a/sys/dev/hifn/hifn7751var.h
+++ b/sys/dev/hifn/hifn7751var.h
@@ -128,7 +128,7 @@ struct hifn_session {
 struct hifn_softc {
 	device_t		sc_dev;		/* device backpointer */
 	struct mtx		sc_mtx;		/* per-instance lock */
-	bus_dma_tag_t		sc_dmat;	/* parent DMA tag decriptor */
+	bus_dma_tag_t		sc_dmat;	/* parent DMA tag descriptor */
 	struct resource		*sc_bar0res;
 	bus_space_handle_t	sc_sh0;		/* bar0 bus space handle */
 	bus_space_tag_t		sc_st0;		/* bar0 bus space tag */
diff --git a/sys/dev/hptmv/array.h b/sys/dev/hptmv/array.h
index 7b507748f5e7..2caf413ccb0f 100644
--- a/sys/dev/hptmv/array.h
+++ b/sys/dev/hptmv/array.h
@@ -99,7 +99,7 @@ typedef struct _RaidArray
 } RaidArray;
 
 /***************************************************************************
- *            Array Descripton on disk
+ *            Array Description on disk
  ***************************************************************************/
 #pragma pack(1)	
 typedef struct _ArrayDescript
diff --git a/sys/dev/hptmv/command.h b/sys/dev/hptmv/command.h
index 3b6a53b26ce8..de51356cdd8f 100644
--- a/sys/dev/hptmv/command.h
+++ b/sys/dev/hptmv/command.h
@@ -128,7 +128,7 @@ typedef struct _Command
 	/* called when this command is finished */
 	void (* HPTLIBAPI pfnCompletion)(_VBUS_ARG PCommand pCmd);
 	
-	/* pointer to origional command */
+	/* pointer to original command */
 	void *pOrgCommand;
 
 
diff --git a/sys/dev/hptmv/entry.c b/sys/dev/hptmv/entry.c
index 9a1b91b58e18..a3ef3644ae20 100644
--- a/sys/dev/hptmv/entry.c
+++ b/sys/dev/hptmv/entry.c
@@ -164,7 +164,7 @@ char DRIVER_VERSION[] = "v1.16";
  *
  *	Description:	free allocated queues for the given channel
  *
- *	Parameters:    	pMvSataAdapter - pointer to the RR18xx controler this 
+ *	Parameters:    	pMvSataAdapter - pointer to the RR18xx controller this 
  * 					channel connected to. 
  *			channelNum - channel number. 
  *     
@@ -309,7 +309,7 @@ hptmv_init_channel(IAL_ADAPTER_T *pAdapter, MV_U8 channelNum)
  *
  *	Description:	this functions parses the identify command results, checks
  *					that the connected deives can be accesed by RR18xx EDMA,
- *					and updates the channel stucture accordingly.
+ *					and updates the channel structure accordingly.
  *
  *	Parameters:     pMvSataChannel, pointer to the channel data structure.
  *
diff --git a/sys/dev/hptmv/hptintf.h b/sys/dev/hptmv/hptintf.h
index 09d638fd3955..191795c048cb 100644
--- a/sys/dev/hptmv/hptintf.h
+++ b/sys/dev/hptmv/hptintf.h
@@ -101,7 +101,7 @@ typedef DWORD DEVICEID;
 
 #define MAX_ARRAY_MEMBERS_V1 8
 #define MAX_ARRAY_MEMBERS_V2 16
-/* keep definition for source code compatiblity */
+/* keep definition for source code compatibility */
 #define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
 
 /*
diff --git a/sys/dev/hptmv/mvOs.h b/sys/dev/hptmv/mvOs.h
index a1ababc3f788..31109738fa0e 100644
--- a/sys/dev/hptmv/mvOs.h
+++ b/sys/dev/hptmv/mvOs.h
@@ -72,7 +72,7 @@ typedef enum mvBoolean{MV_FALSE, MV_TRUE} MV_BOOLEAN;
 #define NULL  0
 #endif
 
-/* System dependant typedefs */
+/* System dependent typedefs */
 typedef void			MV_VOID;
 typedef unsigned int 	MV_U32;
 typedef unsigned short	MV_U16;
diff --git a/sys/dev/hptnr/hptintf.h b/sys/dev/hptnr/hptintf.h
index fa3b36e746df..aefb49c6fdff 100644
--- a/sys/dev/hptnr/hptintf.h
+++ b/sys/dev/hptnr/hptintf.h
@@ -128,7 +128,7 @@ typedef HPT_U32 DEVICEID;
 #define MAX_ARRAY_MEMBERS_V3 64
 #endif
 
-/* keep definition for source code compatiblity */
+/* keep definition for source code compatibility */
 #define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
 
 /*
@@ -153,8 +153,8 @@ typedef HPT_U32 DEVICEID;
 #define ARRAY_FLAG_NEED_AUTOREBUILD 0x00000080 /* auto-rebuild should start */
 #define ARRAY_FLAG_VERIFYING        0x00000100 /* is being verified */
 #define ARRAY_FLAG_INITIALIZING     0x00000200 /* is being initialized */
-#define ARRAY_FLAG_TRANSFORMING     0x00000400 /* tranform in progress */
-#define ARRAY_FLAG_NEEDTRANSFORM    0x00000800 /* array need tranform */
+#define	ARRAY_FLAG_TRANSFORMING     0x00000400 /* transform in progress */
+#define	ARRAY_FLAG_NEEDTRANSFORM    0x00000800 /* array need transform */
 #define ARRAY_FLAG_NEEDINITIALIZING 0x00001000 /* the array's initialization hasn't finished*/
 #define ARRAY_FLAG_BROKEN_REDUNDANT 0x00002000 /* broken but redundant (raid6) */
 #define ARRAY_FLAG_RAID15PLUS       0x80000000 /* display this RAID 1 as RAID 1.5 */
@@ -2014,7 +2014,7 @@ DEVICEID hpt_create_transform_v2(DEVICEID idArray, PCREATE_ARRAY_PARAMS_V3 destI
 #endif
 
 /* hpt_step_transform
- *  move a block in a tranform progress.
+ *  move a block in a transform progress.
  *  This function is called by mid-layer, not GUI (which uses set_array_state instead).
  * Version compatibility: v2.0.0.0 or later
  * Parameters:
diff --git a/sys/dev/hptrr/hptintf.h b/sys/dev/hptrr/hptintf.h
index eb210fcc4ec6..b7f22ab19674 100644
--- a/sys/dev/hptrr/hptintf.h
+++ b/sys/dev/hptrr/hptintf.h
@@ -128,7 +128,7 @@ typedef HPT_U32 DEVICEID;
 #define MAX_ARRAY_MEMBERS_V3 64
 #endif
 
-/* keep definition for source code compatiblity */
+/* keep definition for source code compatibility */
 #define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
 
 /*
@@ -153,8 +153,8 @@ typedef HPT_U32 DEVICEID;
 #define ARRAY_FLAG_NEED_AUTOREBUILD 0x00000080 /* auto-rebuild should start */
 #define ARRAY_FLAG_VERIFYING        0x00000100 /* is being verified */
 #define ARRAY_FLAG_INITIALIZING     0x00000200 /* is being initialized */
-#define ARRAY_FLAG_TRANSFORMING     0x00000400 /* tranform in progress */
-#define ARRAY_FLAG_NEEDTRANSFORM    0x00000800 /* array need tranform */
+#define	ARRAY_FLAG_TRANSFORMING     0x00000400 /* transform in progress */
+#define	ARRAY_FLAG_NEEDTRANSFORM    0x00000800 /* array need transform */
 #define ARRAY_FLAG_NEEDINITIALIZING 0x00001000 /* the array's initialization hasn't finished*/
 #define ARRAY_FLAG_BROKEN_REDUNDANT 0x00002000 /* broken but redundant (raid6) */
 #define ARRAY_FLAG_RAID15PLUS       0x80000000 /* display this RAID 1 as RAID 1.5 */
@@ -1735,7 +1735,7 @@ DEVICEID hpt_create_transform_v2(DEVICEID idArray, PCREATE_ARRAY_PARAMS_V3 destI
 #endif
 
 /* hpt_step_transform
- *  move a block in a tranform progress.
+ *  move a block in a transform progress.
  *  This function is called by mid-layer, not GUI (which uses set_array_state instead).
  * Version compatibility: v2.0.0.0 or later
  * Parameters:
diff --git a/sys/dev/hwpmc/hwpmc_core.h b/sys/dev/hwpmc/hwpmc_core.h
index 7196d9dfb1fa..6183e269c7e1 100644
--- a/sys/dev/hwpmc/hwpmc_core.h
+++ b/sys/dev/hwpmc/hwpmc_core.h
@@ -141,7 +141,7 @@ struct pmc_md_iap_op_pmcallocate {
 #define	IA_GLOBAL_CTRL				0x38F
 
 /*
- * IA_GLOBAL_CTRL is layed out in the following way.
+ * IA_GLOBAL_CTRL is laid out in the following way.
  * 
  * Bit Position    Use
  * 63-35           Reserved (do not touch)
diff --git a/sys/dev/hwpmc/pmc_events.h b/sys/dev/hwpmc/pmc_events.h
index 864ec9592263..7c0ac2fe3278 100644
--- a/sys/dev/hwpmc/pmc_events.h
+++ b/sys/dev/hwpmc/pmc_events.h
@@ -4552,7 +4552,7 @@ __PMC_EV_ALIAS("SQ_MISC.SPLIT_LOCK", IAP_EVENT_F4H_10H)
 #define	PMC_EV_TSC_LAST		PMC_EV_TSC_TSC
 
 /*
- * Software events are dynamicaly defined.
+ * Software events are dynamically defined.
  */
 
 #define	PMC_EV_DYN_COUNT	0x1000
diff --git a/sys/dev/hyperv/include/hyperv.h b/sys/dev/hyperv/include/hyperv.h
index aeec8ec6e169..d5166f645034 100644
--- a/sys/dev/hyperv/include/hyperv.h
+++ b/sys/dev/hyperv/include/hyperv.h
@@ -783,7 +783,7 @@ typedef struct hv_vmbus_channel {
 
 	/*
 	 * From Win8, this field specifies the target virtual process
-	 * on which to deliver the interupt from the host to guest.
+	 * on which to deliver the interrupt from the host to guest.
 	 * Before Win8, all channel interrupts would only be
 	 * delivered on cpu 0. Setting this value to 0 would preserve
 	 * the earlier behavior.
diff --git a/sys/dev/hyperv/utilities/hv_kvp.c b/sys/dev/hyperv/utilities/hv_kvp.c
index d4520d6ed75a..c39083a1d7ab 100644
--- a/sys/dev/hyperv/utilities/hv_kvp.c
+++ b/sys/dev/hyperv/utilities/hv_kvp.c
@@ -118,7 +118,7 @@ typedef struct hv_kvp_sc {
 	struct hv_util_sc	util_sc;
 
 	/* Unless specified the pending mutex should be
-	 * used to alter the values of the following paramters:
+	 * used to alter the values of the following parameters:
 	 * 1. req_in_progress
 	 * 2. req_timed_out
 	 */
@@ -778,7 +778,7 @@ hv_kvp_dev_daemon_read(struct cdev *dev, struct uio *uio, int ioflag __unused)
 
 /*
  * hv_kvp_daemon write invokes this function
- * acts as a recieve from daemon
+ * acts as a receive from daemon
  */
 static int
 hv_kvp_dev_daemon_write(struct cdev *dev, struct uio *uio, int ioflag __unused)
diff --git a/sys/dev/ic/cd180.h b/sys/dev/ic/cd180.h
index ae46a4809b68..941f8caf4f59 100644
--- a/sys/dev/ic/cd180.h
+++ b/sys/dev/ic/cd180.h
@@ -82,7 +82,7 @@
 
 /* Channel Address Register */
 #define CAR_CHAN        0x07    /* Channel Number Mask                    */
-#define CAR_A7          0x08    /* Addres bit 7 (unused)                  */
+#define	CAR_A7          0x08    /* Address bit 7 (unused)                  */
 
 /* Receive Character Status Register */
 #define RCSR_OE         0x01    /* Overrun Error                          */
diff --git a/sys/dev/ichiic/ig4_iic.c b/sys/dev/ichiic/ig4_iic.c
index 23bdb7da2143..ff27da2a9fec 100644
--- a/sys/dev/ichiic/ig4_iic.c
+++ b/sys/dev/ichiic/ig4_iic.c
@@ -659,7 +659,7 @@ ig4iic_smb_callback(device_t dev, int index, void *data)
 /*
  * Quick command.  i.e. START + cmd + R/W + STOP and no data.  It is
  * unclear to me how I could implement this with the intel i2c controller
- * because the controler sends STARTs and STOPs automatically with data.
+ * because the controller sends STARTs and STOPs automatically with data.
  */
 int
 ig4iic_smb_quick(device_t dev, u_char slave, int how)
diff --git a/sys/dev/ichiic/ig4_reg.h b/sys/dev/ichiic/ig4_reg.h
index c87d1d1e9fd2..33976c0daf43 100644
--- a/sys/dev/ichiic/ig4_reg.h
+++ b/sys/dev/ichiic/ig4_reg.h
@@ -185,7 +185,7 @@
  *	RESTART		- RW This bit controls whether a forced RESTART is
  *			  issued before the byte is sent or received.
  *
- *		0	  If not set a RESTART is only issued if the tranfer
+ *		0	  If not set a RESTART is only issued if the transfer
  *			  direction is changing from the previous command.
  *
  *		1	  A RESTART is issued before the byte is sent or
@@ -271,7 +271,7 @@
  *			cleared by HW when the buffer level goes above
  *			the threshold.
  *
- *	TX_OVER		Indicates that the processer attempted to write
+ *	TX_OVER		Indicates that the processor attempted to write
  *			to the TX FIFO while the TX FIFO was full.  Cleared
  *			by reading CLR_TX_OVER.
  *
diff --git a/sys/dev/ida/idareg.h b/sys/dev/ida/idareg.h
index a25a768c564e..7fb48d45063b 100644
--- a/sys/dev/ida/idareg.h
+++ b/sys/dev/ida/idareg.h
@@ -295,7 +295,7 @@ struct ida_phys_drv_info {
 	u_int8_t	scsi_lun;
 	u_int8_t	ympd_flags;	/* yet more physical drive flags */
 #define	YMPDF_DRIVE_WCE_SET	0x40	/* WCE currently set */
-#define	YMPDF_DRIVE_WCE_CHNG	0x80	/* WCE changable */
+#define	YMPDF_DRIVE_WCE_CHNG	0x80	/* WCE changeable */
 	u_int8_t	reserved;
 	u_int32_t	spi_speed_rules;
 	u_int8_t	phys_con[2];	/* Physical Connector */
diff --git a/sys/dev/if_ndis/if_ndis.c b/sys/dev/if_ndis/if_ndis.c
index 0e3643ab49be..2237259148ec 100644
--- a/sys/dev/if_ndis/if_ndis.c
+++ b/sys/dev/if_ndis/if_ndis.c
@@ -1374,7 +1374,7 @@ ndis_rxeof_xfr_done(adapter, packet, status, len)
  * out-of-band portion of the ndis_packet has special meaning. In the
  * most common case, the underlying NDIS driver will set this field
  * to NDIS_STATUS_SUCCESS, which indicates that it's ok for us to
- * take posession of it. We then change the status field to
+ * take possession of it. We then change the status field to
  * NDIS_STATUS_PENDING to tell the driver that we now own the packet,
  * and that we will return it at some point in the future via the
  * return packet handler.
diff --git a/sys/dev/iicbus/ds133x.c b/sys/dev/iicbus/ds133x.c
index 20f1d4067da0..1f703dc895d0 100644
--- a/sys/dev/iicbus/ds133x.c
+++ b/sys/dev/iicbus/ds133x.c
@@ -150,7 +150,7 @@ ds133x_detect(device_t dev, int *sc_type)
 
 	/*
 	 * Now Check for DS1337. Bit 5 in control register of this chip will be
-	 * allways read as 0. In DS1339 changing of this bit is safe until
+	 * always read as 0. In DS1339 changing of this bit is safe until
 	 * chip is powered up.
 	 */
 
diff --git a/sys/dev/iicbus/if_ic.c b/sys/dev/iicbus/if_ic.c
index 7a4e2b12e3da..0df2f4a45eee 100644
--- a/sys/dev/iicbus/if_ic.c
+++ b/sys/dev/iicbus/if_ic.c
@@ -289,7 +289,7 @@ icintr(device_t dev, int event, char *ptr)
 
 	case INTR_STOP:
 
-		/* if any error occured during transfert,
+		/* if any error occurred during transfert,
 		 * drop the packet */
 		sc->ic_flags &= ~IC_IFBUF_BUSY;
 		if ((sc->ic_flags & (IC_BUFFERS_BUSY | IC_BUFFER_WAITER)) ==
diff --git a/sys/dev/iicbus/iiconf.h b/sys/dev/iicbus/iiconf.h
index 12ac0d77319d..03b958346dc0 100644
--- a/sys/dev/iicbus/iiconf.h
+++ b/sys/dev/iicbus/iiconf.h
@@ -82,7 +82,7 @@
 /*
  * adapter layer errors
  */
-#define IIC_NOERR	0x0	/* no error occured */
+#define	IIC_NOERR	0x0	/* no error occurred */
 #define IIC_EBUSERR	0x1	/* bus error (hardware not in expected state) */
 #define IIC_ENOACK	0x2	/* ack not received until timeout */
 #define IIC_ETIMEOUT	0x3	/* timeout */
diff --git a/sys/dev/iicbus/twsi/twsi.c b/sys/dev/iicbus/twsi/twsi.c
index 1b27956a0700..dee0b7a77d94 100644
--- a/sys/dev/iicbus/twsi/twsi.c
+++ b/sys/dev/iicbus/twsi/twsi.c
@@ -141,7 +141,7 @@ twsi_clear_iflg(struct twsi_softc *sc)
 /*
  * timeout given in us
  * returns
- *   0 on sucessfull mask change
+ *   0 on successful mask change
  *   non-zero on timeout
  */
 static int
diff --git a/sys/dev/iir/iir.c b/sys/dev/iir/iir.c
index e74698e14869..52dc123b669f 100644
--- a/sys/dev/iir/iir.c
+++ b/sys/dev/iir/iir.c
@@ -30,7 +30,7 @@
  */
 
 /*
- * iir.c: SCSI dependant code for the Intel Integrated RAID Controller driver
+ * iir.c: SCSI dependent code for the Intel Integrated RAID Controller driver
  *
  * Written by: Achim Leubner <achim_leubner@adaptec.com>
  * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
diff --git a/sys/dev/intpm/intpm.c b/sys/dev/intpm/intpm.c
index 60ad17f98d53..911332c5402a 100644
--- a/sys/dev/intpm/intpm.c
+++ b/sys/dev/intpm/intpm.c
@@ -496,7 +496,7 @@ intsmb_stop(struct intsmb_softc *sc)
 	/* Timeout Procedure. */
 	sc->isbusy = 0;
 
-	/* Re-enable supressed interrupt from slave part. */
+	/* Re-enable suppressed interrupt from slave part. */
 	bus_write_1(sc->io_res, PIIX4_SMBSLVCNT, PIIX4_SMBSLVCNT_ALTEN);
 	if (error == EWOULDBLOCK)
 		return (SMB_ETIMEOUT);
diff --git a/sys/dev/ips/ips.c b/sys/dev/ips/ips.c
index 7ef3ba7beb43..2bda55deaf68 100644
--- a/sys/dev/ips/ips.c
+++ b/sys/dev/ips/ips.c
@@ -107,7 +107,7 @@ static void ips_cmd_dmaload(void *cmdptr, bus_dma_segment_t *segments,int segnum
 
 }
 
-/* is locking needed? what locking guarentees are there on removal? */
+/* is locking needed? what locking guarantees are there on removal? */
 static int ips_cmdqueue_free(ips_softc_t *sc)
 {
 	int i, error = -1;
diff --git a/sys/dev/isci/isci_controller.c b/sys/dev/isci/isci_controller.c
index d3ec04577282..02bf2d021303 100644
--- a/sys/dev/isci/isci_controller.c
+++ b/sys/dev/isci/isci_controller.c
@@ -470,7 +470,7 @@ int isci_controller_allocate_memory(struct ISCI_CONTROLLER *controller)
 
 	/* Create DMA tag for our I/O requests.  Then we can create DMA maps based off
 	 *  of this tag and store them in each of our ISCI_IO_REQUEST objects.  This
-	 *  will enable better performance than creating the DMA maps everytime we get
+	 *  will enable better performance than creating the DMA maps every time we get
 	 *  an I/O.
 	 */
 	status = bus_dma_tag_create(bus_get_dma_tag(device), 0x1, 0x0,
diff --git a/sys/dev/isci/isci_io_request.c b/sys/dev/isci/isci_io_request.c
index f86c12681005..468d12452d2a 100644
--- a/sys/dev/isci/isci_io_request.c
+++ b/sys/dev/isci/isci_io_request.c
@@ -309,7 +309,7 @@ isci_io_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller,
  *            handle.
  * @param[in] io_request This parameter is the io request object handle
  *            for which the physical address is being requested.
- * @param[in] virtual_address This paramter is the virtual address which
+ * @param[in] virtual_address This parameter is the virtual address which
  *            is to be returned as a physical address.
  * @param[out] physical_address The physical address for the supplied virtual
  *             address.
@@ -540,14 +540,14 @@ scif_cb_io_request_get_virtual_address_from_sgl(void * scif_user_io_request,
 
 /**
  * @brief This callback method asks the user to provide the number of
- *        bytes to be transfered as part of this request.
+ *        bytes to be transferred as part of this request.
  *
  * @param[in] scif_user_io_request This parameter points to the user's
  *            IO request object.  It is a cookie that allows the user to
  *            provide the necessary information for this callback.
  *
  * @return This method returns the number of payload data bytes to be
- *         transfered for this IO request.
+ *         transferred for this IO request.
  */
 uint32_t
 scif_cb_io_request_get_transfer_length(void * scif_user_io_request)
diff --git a/sys/dev/isci/isci_timer.c b/sys/dev/isci/isci_timer.c
index 1f22e9436349..9059c5b5d766 100644
--- a/sys/dev/isci/isci_timer.c
+++ b/sys/dev/isci/isci_timer.c
@@ -144,7 +144,7 @@ scif_cb_timer_create(SCI_CONTROLLER_HANDLE_T scif_controller,
 }
 
 /**
- * @brief This callback method asks the user to destory the supplied timer.
+ * @brief This callback method asks the user to destroy the supplied timer.
  *
  * @param[in]  controller This parameter specifies the controller with
  *             which this timer is to associated.
diff --git a/sys/dev/isci/scil/intel_sas.h b/sys/dev/isci/scil/intel_sas.h
index 18fa8d3b370e..e2bd8ee8badb 100644
--- a/sys/dev/isci/scil/intel_sas.h
+++ b/sys/dev/isci/scil/intel_sas.h
@@ -465,7 +465,7 @@ typedef struct SMP_REQUEST_CONFIGURE_ROUTE_INFORMATION
 
 /**
  * @struct SMP_REQUEST_PHY_CONTROL
- * @brief  This structure defines the contents of an SMP Phy Controler
+ * @brief  This structure defines the contents of an SMP Phy Controller
  *         request.
  *         @note For specific information on each of these
  *               individual fields please reference the SAS specification.
diff --git a/sys/dev/isci/scil/sati_callbacks.h b/sys/dev/isci/scil/sati_callbacks.h
index e6cd57fa8bd2..2364e42b01af 100644
--- a/sys/dev/isci/scil/sati_callbacks.h
+++ b/sys/dev/isci/scil/sati_callbacks.h
@@ -173,7 +173,7 @@ U8 sati_cb_get_task_function(
  *        response IU buffer.
  *
  * @param[in]  scsi_io This parameter specifies the user's SCSI IO request
- *             for which to retreive the location of the response buffer to
+ *             for which to retrieve the location of the response buffer to
  *             be written.
  *
  * @return This method returns the address of the response data buffer.
@@ -189,7 +189,7 @@ void * sati_cb_get_response_iu_address(
  *        buffer.
  *
  * @param[in]  scsi_io This parameter specifies the user's SCSI IO request
- *             for which to retreive the location of the sense buffer to
+ *             for which to retrieve the location of the sense buffer to
  *             be written.
  *
  * @return This method returns the address of the sense data buffer.
@@ -203,7 +203,7 @@ U8* sati_cb_get_sense_data_address(
  *        buffer.
  *
  * @param[in]  scsi_io This parameter specifies the user's SCSI IO request
- *             for which to retreive the location of the sense buffer to
+ *             for which to retrieve the location of the sense buffer to
  *             be written.
  *
  * @return This method returns the length of the sense data buffer.
@@ -246,7 +246,7 @@ U8 * sati_cb_get_h2d_register_fis_address(
 
 /**
  * @brief This method retrieves the ATA task file (register FIS) relating to
- *        the device to host reponse values.
+ *        the device to host response values.
  *
  * @param[in] ata_io This parameter specifies the user's ATA IO request
  *            from which to retrieve the d2h register FIS address.
@@ -374,7 +374,7 @@ BOOL sati_cb_do_translate_response(
  *        associated device is contained in a SAS Domain.
  *
  * @param[in]  scsi_io This parameter specifies the user's SCSI IO request
- *             for which to retreive the SAS address of the device.
+ *             for which to retrieve the SAS address of the device.
  * @param[out] sas_address This parameter specifies the SAS address memory
  *             to be contain the retrieved value.
  *
diff --git a/sys/dev/isci/scil/sati_design.h b/sys/dev/isci/scil/sati_design.h
index f4f22483285d..372dce0f7d29 100644
--- a/sys/dev/isci/scil/sati_design.h
+++ b/sys/dev/isci/scil/sati_design.h
@@ -151,7 +151,7 @@ be followed for command translations.
 @image html Sequence_Diagram__General_Cmd_Translation_Sequence__General_Cmd_Translation_Sequence.jpg "General Command Translation Sequence"
 
 This sequence diagram simply depicts the high-level translation sequence to
-be followed for reponse translations.
+be followed for response translations.
 
 @image html Sequence_Diagram__General_Rsp_Translation_Sequence__General_Rsp_Translation_Sequence.jpg "General Response Translation Sequence"
 
diff --git a/sys/dev/isci/scil/sati_device.h b/sys/dev/isci/scil/sati_device.h
index 980ca4426563..d955f83cda51 100644
--- a/sys/dev/isci/scil/sati_device.h
+++ b/sys/dev/isci/scil/sati_device.h
@@ -151,7 +151,7 @@ typedef struct SATI_DEVICE
    U8 unit_attention_ascq;
 
    /**
-    * This field indicates the ATA standby timer value set throught the
+    * This field indicates the ATA standby timer value set through the
     * ATA IDLE and ATA Standby commands
     */
    U8 ata_standby_timer;
diff --git a/sys/dev/isci/scil/sati_log_sense.c b/sys/dev/isci/scil/sati_log_sense.c
index 44bc4e91afab..04c489411d8f 100644
--- a/sys/dev/isci/scil/sati_log_sense.c
+++ b/sys/dev/isci/scil/sati_log_sense.c
@@ -394,7 +394,7 @@ void sati_self_test_log_header_construct(
 
 /**
  * @brief This method will construct the SCSI self test log page from
- *        the Extended SMART self-test log response recieved from the
+ *        the Extended SMART self-test log response received from the
  *        ATA device. The response is from a ATA_Read_Log_EXT command
  *        issued by SATI.
  *
@@ -427,7 +427,7 @@ void sati_extended_self_test_log_page_construct(
 
 /**
 * @brief This method will construct the SCSI self test log page from
-*        the SMART self-test log response recieved from the ATA device.
+*        the SMART self-test log response received from the ATA device.
 *        The response is from a ATA_SMART_Read_Log command issued by SATI.
 *
 * @return n/a
@@ -513,7 +513,7 @@ void sati_self_test_log_page_construct(
 
 /**
 * @brief This method will construct the SCSI information exception log page from
-*        the ATA SMART response recieved from the ATA device. The response is
+*        the ATA SMART response received from the ATA device. The response is
 *         from a ATA SMART return status command issued by SATI.
 *
 * @return n/a
diff --git a/sys/dev/isci/scil/sati_move.c b/sys/dev/isci/scil/sati_move.c
index 630a9f8ac7ca..9b1e8dc2db3b 100644
--- a/sys/dev/isci/scil/sati_move.c
+++ b/sys/dev/isci/scil/sati_move.c
@@ -147,7 +147,7 @@ void sati_move_small_udma_translate_command(
  *        please reference sati_translate_command()
  *
  * @param[in] sector_count This parameter specifies the number of sectors
- *            to be transfered.
+ *            to be transferred.
  * @param[in] write_opcode This parameter specifies the value to be written
  *            to the ATA command register for a write (data out) operation.
  * @param[in] read_opcode This parameter specifies the value to be written
@@ -220,7 +220,7 @@ void sati_move_ncq_translate_8_bit_sector_count(
  * @note This method should only be called for CDB sizes of 10-bytes or larger.
  *
  * @param[in] sector_count This parameter specifies the number of sectors
- *            to be transfered.
+ *            to be transferred.
  * @param[in] is_fpdma_command This parameter indicates if the supplied
  *            ata_io is a first party DMA request (NCQ).
  *
@@ -491,7 +491,7 @@ SATI_STATUS sati_move_small_translate_command(
  *        please reference sati_translate_command().
  *
  * @param[in] sector_count This parameter specifies the number of sectors
- *            to be transfered.
+ *            to be transferred.
  * @param[in] device_head This parameter specifies the contents to be
  *            written to the device head register.
  *
diff --git a/sys/dev/isci/scil/sati_translator_sequence.h b/sys/dev/isci/scil/sati_translator_sequence.h
index 4bd63a74f2ef..dba53260bc7e 100644
--- a/sys/dev/isci/scil/sati_translator_sequence.h
+++ b/sys/dev/isci/scil/sati_translator_sequence.h
@@ -57,7 +57,7 @@
 /**
  * @file
  * @brief This file contains all of the defintions for the SATI translator
- *        sequence.  A translator sequence is simply a defintion for the
+ *        sequence.  A translator sequence is simply a definition for the
  *        various sequences of commands that occur in this translator.
  */
 
@@ -310,7 +310,7 @@ typedef struct SATI_TRANSLATOR_SEQUENCE
 
    /**
     * This field specifies the amount of data that will actually be
-    * transfered across the wire for this ATA request.
+    * transferred across the wire for this ATA request.
     */
    U32 ata_transfer_length;
 
diff --git a/sys/dev/isci/scil/sati_util.c b/sys/dev/isci/scil/sati_util.c
index 18c10c82a227..90b9bfa4d8f7 100644
--- a/sys/dev/isci/scil/sati_util.c
+++ b/sys/dev/isci/scil/sati_util.c
@@ -1790,7 +1790,7 @@ void sati_ata_smart_read_log_construct(
 
 /**
  * @brief This method will construct a Write Uncorrectable ATA command that
- *        will write one sector with a psuedo or flagged error. The type of
+ *        will write one sector with a pseudo or flagged error. The type of
  *        error is specified by the feature value.
  *
  * @return N/A
diff --git a/sys/dev/isci/scil/sci_base_phy.h b/sys/dev/isci/scil/sci_base_phy.h
index 141b47a2693a..914a11007385 100644
--- a/sys/dev/isci/scil/sci_base_phy.h
+++ b/sys/dev/isci/scil/sci_base_phy.h
@@ -93,7 +93,7 @@ typedef enum _SCI_BASE_PHY_STATES
    SCI_BASE_PHY_STATE_STOPPED,
 
    /**
-    * This state indicates that the phy is in the process of becomming
+    * This state indicates that the phy is in the process of becoming
     * ready.  In this state no new IO operations are permitted on this phy.
     * This state is entered from the STOPPED state.
     * This state is entered from the READY state.
diff --git a/sys/dev/isci/scil/sci_fast_list.h b/sys/dev/isci/scil/sci_fast_list.h
index a7f166d241bd..0325fadf0ff8 100644
--- a/sys/dev/isci/scil/sci_fast_list.h
+++ b/sys/dev/isci/scil/sci_fast_list.h
@@ -67,7 +67,7 @@
  *        queue.   Pointers in this implementation never == NULL.
  *
  *        Definitions:
- *        - anchor : This is ths list container and has a
+ *        - anchor : This is the list container and has a
  *                   pointer to both the head and tail of the
  *                   list elements
  *        - element: This is the list element not the actual
diff --git a/sys/dev/isci/scil/sci_simple_list.h b/sys/dev/isci/scil/sci_simple_list.h
index 98d29e13b06a..9c0848a52fcc 100644
--- a/sys/dev/isci/scil/sci_simple_list.h
+++ b/sys/dev/isci/scil/sci_simple_list.h
@@ -305,7 +305,7 @@ static void sci_simple_list_insert_list_at_head(
       }
 
       // Wipe the source list to make sure the list elements can not be accessed
-      // from two seperate lists at the same time.
+      // from two separate lists at the same time.
       sci_simple_list_init(source_anchor);
    }
 }
@@ -342,7 +342,7 @@ static void sci_simple_list_insert_list_at_tail(
       }
 
       // Wipe the source list to make sure the list elements can not be accessed
-      // from two seperate lists at the same time.
+      // from two separate lists at the same time.
       sci_simple_list_init(source_anchor);
    }
 }
diff --git a/sys/dev/isci/scil/scic_config_parameters.h b/sys/dev/isci/scil/scic_config_parameters.h
index 1c6c86c9f0ea..969cd30350fe 100644
--- a/sys/dev/isci/scil/scic_config_parameters.h
+++ b/sys/dev/isci/scil/scic_config_parameters.h
@@ -323,7 +323,7 @@ SCI_STATUS scic_oem_parameters_set(
 );
 
 /**
- * @brief This method allows the user to retreive the OEM
+ * @brief This method allows the user to retrieve the OEM
  *        parameters utilized by the controller.
  *
  * @param[in]  controller This parameter specifies the controller on which
diff --git a/sys/dev/isci/scil/scic_controller.h b/sys/dev/isci/scil/scic_controller.h
index 75804c75795b..31c94af6d1f8 100644
--- a/sys/dev/isci/scil/scic_controller.h
+++ b/sys/dev/isci/scil/scic_controller.h
@@ -133,7 +133,7 @@ typedef BOOL (*SCIC_CONTROLLER_INTERRUPT_HANDLER)(
  *        called some time after the interrupt handler.
  *
  * @note  Most, if not all, of the user callback APIs are invoked from within
- *        this API.  As a result, the user should be cognizent of the operating
+ *        this API.  As a result, the user should be cognizant of the operating
  *        level at which they invoke this API.
  *
  */
diff --git a/sys/dev/isci/scil/scic_sds_controller.c b/sys/dev/isci/scil/scic_sds_controller.c
index 413ef5bacef7..767f89c04e3c 100644
--- a/sys/dev/isci/scil/scic_sds_controller.c
+++ b/sys/dev/isci/scil/scic_sds_controller.c
@@ -1077,7 +1077,7 @@ void scic_sds_controller_afe_initialization(
       scu_afe_register_write(this_controller, afe_bias_control, 0x00005F00);
    else if (this_controller->pci_revision == SCIC_SDS_PCI_REVISION_C1)
       scu_afe_register_write(this_controller, afe_bias_control, 0x00005500);
-   // For C0 the AFE BIAS Controll is unchanged
+   // For C0 the AFE BIAS Control is unchanged
 
    scic_cb_stall_execution(AFE_REGISTER_WRITE_DELAY);
 
@@ -2429,7 +2429,7 @@ void scic_sds_controller_process_completions(
    SCIC_LOG_TRACE((
       sci_base_object_get_logger(this_controller),
       SCIC_LOG_OBJECT_COMPLETION_QUEUE,
-      "completion queue begining get : 0x%08x\n",
+      "completion queue beginning get : 0x%08x\n",
       this_controller->completion_queue_get
    ));
 
@@ -2544,7 +2544,7 @@ void scic_sds_controller_transitioned_process_completions(
    SCIC_LOG_TRACE((
       sci_base_object_get_logger(this_controller),
       SCIC_LOG_OBJECT_COMPLETION_QUEUE,
-      "completion queue begining get : 0x%08x\n",
+      "completion queue beginning get : 0x%08x\n",
       this_controller->completion_queue_get
    ));
 
diff --git a/sys/dev/isci/scil/scic_sds_controller.h b/sys/dev/isci/scil/scic_sds_controller.h
index 9829a7b41fc5..fe3468f157d9 100644
--- a/sys/dev/isci/scil/scic_sds_controller.h
+++ b/sys/dev/isci/scil/scic_sds_controller.h
@@ -247,7 +247,7 @@ typedef struct SCIC_SDS_CONTROLLER
    SCI_POOL_CREATE(tci_pool, U16, SCI_MAX_IO_REQUESTS);
 
    /**
-    * This filed is the SCIC_POWER_CONTROL data used to controll when direct
+    * This filed is the SCIC_POWER_CONTROL data used to control when direct
     * attached devices can consume power.
     */
    SCIC_POWER_CONTROL_T power_control;
@@ -371,7 +371,7 @@ typedef struct SCIC_SDS_CONTROLLER
    U32 next_phy_to_start;
 
    /**
-    * This field controlls the invalid link up notifications to the SCI_USER.  If
+    * This field controls the invalid link up notifications to the SCI_USER.  If
     * an invalid_link_up notification is reported a bit for the PHY index is set
     * so further notifications are not made.  Once the PHY object reports link up
     * and is made part of a port then this bit for the PHY index is cleared.
diff --git a/sys/dev/isci/scil/scic_sds_phy_registers.h b/sys/dev/isci/scil/scic_sds_phy_registers.h
index 14a6be5f3a21..24ed608d291c 100644
--- a/sys/dev/isci/scil/scic_sds_phy_registers.h
+++ b/sys/dev/isci/scil/scic_sds_phy_registers.h
@@ -241,7 +241,7 @@ extern "C" {
 #define SCU_SAS_PHYCAP_WRITE(phy, value) \
     scu_link_layer_register_write(phy, phy_capabilities, value)
 
-/// This macro reads the Recieved PHY Capacity register
+/// This macro reads the Received PHY Capacity register
 #define SCU_SAS_RECPHYCAP_READ(phy) \
     scu_link_layer_register_read(phy, receive_phycap)
 
diff --git a/sys/dev/isci/scil/scic_sds_port.c b/sys/dev/isci/scil/scic_sds_port.c
index 59940f0035b9..42993a349465 100644
--- a/sys/dev/isci/scil/scic_sds_port.c
+++ b/sys/dev/isci/scil/scic_sds_port.c
@@ -584,7 +584,7 @@ void scic_sds_port_get_attached_protocols(
 }
 
 /**
- * @brief This method returns the amount of memory requred for a port
+ * @brief This method returns the amount of memory required for a port
  *        object.
  *
  * @return U32
@@ -3013,7 +3013,7 @@ SCI_STATUS scic_sds_port_ready_waiting_substate_start_io_handler(
 //****************************************************************************
 
 /**
- * This method will casue the port to reset.
+ * This method will cause the port to reset.
  *
  * @param[in] port This is the SCI_BASE_PORT object which is cast into a
  *       SCIC_SDS_PORT object.
diff --git a/sys/dev/isci/scil/scic_sds_port.h b/sys/dev/isci/scil/scic_sds_port.h
index b07997b2636d..321f6674ec63 100644
--- a/sys/dev/isci/scil/scic_sds_port.h
+++ b/sys/dev/isci/scil/scic_sds_port.h
@@ -214,7 +214,7 @@ typedef struct SCIC_SDS_PORT
    SCU_PORT_PE_CONFIGURATION_REGISTER_T *port_pe_configuration_register;
 
    /**
-    * This field is the VIIT register space for ths port object.
+    * This field is the VIIT register space for this port object.
     */
    SCU_VIIT_ENTRY_T *viit_registers;
 
diff --git a/sys/dev/isci/scil/scic_sds_port_configuration_agent.c b/sys/dev/isci/scil/scic_sds_port_configuration_agent.c
index a6f66a319112..95e442ff1ebf 100644
--- a/sys/dev/isci/scil/scic_sds_port_configuration_agent.c
+++ b/sys/dev/isci/scil/scic_sds_port_configuration_agent.c
@@ -772,7 +772,7 @@ void scic_sds_apc_agent_configure_ports(
 
    // Check to see if the start timer operations should instead map to an
    // add phy operation.  This is caused because we have been waiting to
-   // add a phy to a port but could not becuase the automatic port
+   // add a phy to a port but could not because the automatic port
    // configuration engine had a choice of possible ports for the phy.
    // Since we have gone through a timeout we are going to restrict the
    // choice to the smallest possible port.
@@ -849,7 +849,7 @@ void scic_sds_apc_agent_link_up(
       //the phy is already the part of the port
 
       //if the PORT'S state is resetting then the link up is from port hard reset
-      //in this case, we need to tell the port that link up is recieved
+      //in this case, we need to tell the port that link up is received
       if (  SCI_BASE_PORT_STATE_RESETTING
             == port->parent.state_machine.current_state_id
          )
diff --git a/sys/dev/isci/scil/scic_sds_remote_device.c b/sys/dev/isci/scil/scic_sds_remote_device.c
index e68363025e46..efc2f18c0a4b 100644
--- a/sys/dev/isci/scil/scic_sds_remote_device.c
+++ b/sys/dev/isci/scil/scic_sds_remote_device.c
@@ -2375,7 +2375,7 @@ SCIC_SDS_REMOTE_DEVICE_STATE_HANDLER_T
 
 /**
  * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_INITIAL it
- * immediatly transitions the remote device object to the stopped state.
+ * immediately transitions the remote device object to the stopped state.
  *
  * @param[in] object This is the SCI_BASE_OBJECT that is cast into a
  *            SCIC_SDS_REMOTE_DEVICE.
diff --git a/sys/dev/isci/scil/scic_sds_remote_node_context.c b/sys/dev/isci/scil/scic_sds_remote_node_context.c
index c2ec1c21e32e..473b4763dd6c 100644
--- a/sys/dev/isci/scil/scic_sds_remote_node_context.c
+++ b/sys/dev/isci/scil/scic_sds_remote_node_context.c
@@ -302,7 +302,7 @@ void scic_sds_remote_node_context_setup_to_resume(
 
 /**
 * This method will setup the remote node context object so it will
-* transistion to its final state.
+* transition to its final state.
 *
 * @param[in] this_rnc
 * @param[in] the_callback
diff --git a/sys/dev/isci/scil/scic_sds_remote_node_table.c b/sys/dev/isci/scil/scic_sds_remote_node_table.c
index d159f27e4634..2c287bd90497 100644
--- a/sys/dev/isci/scil/scic_sds_remote_node_table.c
+++ b/sys/dev/isci/scil/scic_sds_remote_node_table.c
@@ -138,7 +138,7 @@ void scic_sds_remote_node_table_clear_group_index(
 }
 
 /**
- * This method will set the group index bit entry in the specified gropu index
+ * This method will set the group index bit entry in the specified group index
  * table.
  *
  * @param[in out] remote_node_table This the remote node table in which to set
diff --git a/sys/dev/isci/scil/scic_sds_request.c b/sys/dev/isci/scil/scic_sds_request.c
index f126e5876e39..3e85785042e0 100644
--- a/sys/dev/isci/scil/scic_sds_request.c
+++ b/sys/dev/isci/scil/scic_sds_request.c
@@ -94,7 +94,7 @@ __FBSDID("$FreeBSD$");
 /**
 * @struct SCI_SINGLE_LEVEL_LUN
 *
-* @brief this struct decribes the single level LUN structure
+* @brief this struct describes the single level LUN structure
 *        as per the SAM 4.
 */
 typedef struct SCI_SINGLE_LEVEL_LUN
@@ -842,7 +842,7 @@ void scic_sds_ssp_task_request_assign_buffers(
  *          -# task_type == SCU_TASK_TYPE_IOREAD.  This simply indicates
  *             that a normal request type (i.e. non-raw frame) is being
  *             utilized to perform task management.
- *          -# control_frame == 1.  This ensures that the proper endianess
+ *          -# control_frame == 1.  This ensures that the proper endianness
  *             is set so that the bytes are transmitted in the right order
  *             for a task frame.
  *
@@ -2116,7 +2116,7 @@ SCI_STATUS scic_sds_request_started_state_abort_handler(
  * @param[in] this_request This parameter specifies the request for which
  *             a completion occurred.
  * @param[in]  completion_code This parameter specifies the completion code
- *             recieved from the SCU.
+ *             received from the SCU.
  *
  * @return none
  */
@@ -2706,7 +2706,7 @@ void scic_sds_request_constructed_state_enter(
  * SCSI Task request we must enter the started substate machine.
  *
  * @param[in] object This parameter specifies the base object for which the
- *       state transition is occuring.  This is cast into a
+ *       state transition is occurring.  This is cast into a
  *       SCIC_SDS_IO_REQUEST object.
  *
  * @return none
@@ -2736,7 +2736,7 @@ void scic_sds_request_started_state_enter(
  * to stop the started substate machine.
  *
  * @param[in] object This parameter specifies the base object for which the
- *       state transition is occuring.  This object is cast into a
+ *       state transition is occurring.  This object is cast into a
  *       SCIC_SDS_IO_REQUEST object.
  *
  * @return none
@@ -2760,7 +2760,7 @@ void scic_sds_request_started_state_exit(
  * completion callback function.
  *
  * @param[in] object This parameter specifies the base object for which the
- *       state transition is occuring.  This object is cast into a
+ *       state transition is occurring.  This object is cast into a
  *       SCIC_SDS_IO_REQUEST object.
  *
  * @return none
@@ -2804,7 +2804,7 @@ void scic_sds_request_completed_state_enter(
  * SCI_BASE_REQUEST_STATE_ABORTING state.
  *
  * @param[in] object This parameter specifies the base object for which the
- *       state transition is occuring.  This object is cast into a
+ *       state transition is occurring.  This object is cast into a
  *       SCIC_SDS_IO_REQUEST object.
  *
  * @return none
@@ -2832,7 +2832,7 @@ void scic_sds_request_aborting_state_enter(
  * state handlers in place.
  *
  * @param[in] object This parameter specifies the base object for which the
- *       state transition is occuring.  This is cast into a
+ *       state transition is occurring.  This is cast into a
  *       SCIC_SDS_IO_REQUEST object.
  *
  * @return none
diff --git a/sys/dev/isci/scil/scic_sds_smp_request.c b/sys/dev/isci/scil/scic_sds_smp_request.c
index d6990e5bedc9..ea92782fbfd8 100644
--- a/sys/dev/isci/scil/scic_sds_smp_request.c
+++ b/sys/dev/isci/scil/scic_sds_smp_request.c
@@ -352,7 +352,7 @@ SCI_STATUS scic_io_request_construct_smp_pass_through(
  *          -# task_type == SCU_TASK_TYPE_SMP.  This simply indicates
  *             that a normal request type (i.e. non-raw frame) is being
  *             utilized to perform task management.
- *          -# control_frame == 1.  This ensures that the proper endianess
+ *          -# control_frame == 1.  This ensures that the proper endianness
  *             is set so that the bytes are transmitted in the right order
  *             for a smp request frame.
  *
@@ -811,7 +811,7 @@ scic_sds_smp_request_started_substate_handler_table
  *        sub-state.
  *
  * @param[in]  object This parameter specifies the request object for which
- *             the sub-state change is occuring.
+ *             the sub-state change is occurring.
  *
  * @return none.
  */
@@ -836,7 +836,7 @@ void scic_sds_smp_request_started_await_response_substate_enter(
  *        this sub-state.
  *
  * @param[in]  object This parameter specifies the request object for which
- *             the sub-state change is occuring.
+ *             the sub-state change is occurring.
  *
  * @return none.
  */
diff --git a/sys/dev/isci/scil/scic_sds_ssp_request.c b/sys/dev/isci/scil/scic_sds_ssp_request.c
index 086f479407d6..c7a67acf0a04 100644
--- a/sys/dev/isci/scil/scic_sds_ssp_request.c
+++ b/sys/dev/isci/scil/scic_sds_ssp_request.c
@@ -279,7 +279,7 @@ scic_sds_ssp_task_request_started_substate_handler_table
  *        for this sub-state.
  *
  * @param[in]  object This parameter specifies the request object for which
- *             the sub-state change is occuring.
+ *             the sub-state change is occurring.
  *
  * @return none.
  */
@@ -304,7 +304,7 @@ void scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter(
  *        sub-state.
  *
  * @param[in]  object This parameter specifies the request object for which
- *             the sub-state change is occuring.
+ *             the sub-state change is occurring.
  *
  * @return none.
  */
diff --git a/sys/dev/isci/scil/scic_sds_stp_packet_request.c b/sys/dev/isci/scil/scic_sds_stp_packet_request.c
index b29a4e84941b..42a7497b7ad0 100644
--- a/sys/dev/isci/scil/scic_sds_stp_packet_request.c
+++ b/sys/dev/isci/scil/scic_sds_stp_packet_request.c
@@ -124,7 +124,7 @@ SCI_STATUS scic_sds_stp_packet_request_construct(
  *          -# task_type == SCU_TASK_TYPE_PACKET_DMA.  This simply indicates
  *             that a normal request type (i.e. non-raw frame) is being
  *             utilized to perform task management.
- *          -# control_frame == 1.  This ensures that the proper endianess
+ *          -# control_frame == 1.  This ensures that the proper endianness
  *             is set so that the bytes are transmitted in the right order
  *             for a smp request frame.
  *
@@ -454,7 +454,7 @@ SCI_STATUS scic_sds_stp_packet_request_packet_phase_await_pio_setup_frame_handle
  * @brief This method processes the completions transport layer (TL) status
  *        to determine if the PACKET command data FIS was sent successfully.
  *        If successfully, then the state for the packet request
- *        transits to COMPLETE state. If not successfuly, the request transits
+ *        transits to COMPLETE state. If not successfully, the request transits
  *        to COMMAND_PHASE_AWAIT_D2H_FIS_SUBSTATE.
  *
  * @param[in] this_request This parameter specifies the request for which
diff --git a/sys/dev/isci/scil/scic_sds_stp_remote_device.c b/sys/dev/isci/scil/scic_sds_stp_remote_device.c
index 49511c9f3a6d..8eb511f93136 100644
--- a/sys/dev/isci/scil/scic_sds_stp_remote_device.c
+++ b/sys/dev/isci/scil/scic_sds_stp_remote_device.c
@@ -424,7 +424,7 @@ SCI_STATUS scic_sds_stp_remote_device_ready_ncq_substate_event_handler(
          this_device, event_code, sci_base_state_machine_get_state(&this_device->ready_substate_machine)
       ));
 
-      // Since we didnt expect to get here start the device again.
+      // Since we didn't expect to get here start the device again.
       status = scic_sds_remote_device_resume(this_device);
       break;
 
diff --git a/sys/dev/isci/scil/scic_sds_stp_request.c b/sys/dev/isci/scil/scic_sds_stp_request.c
index f3fe28ddd4c9..5a2612cf588d 100644
--- a/sys/dev/isci/scil/scic_sds_stp_request.c
+++ b/sys/dev/isci/scil/scic_sds_stp_request.c
@@ -337,7 +337,7 @@ void scu_sata_reqeust_construct_task_context(
 
    // Copy the physical address for the command buffer to the SCU Task Context
    // We must offset the command buffer by 4 bytes because the first 4 bytes are
-   // transfered in the body of the TC
+   // transferred in the body of the TC
    scic_cb_io_request_get_physical_address(
       scic_sds_request_get_controller(this_request),
       this_request,
@@ -398,7 +398,7 @@ void scic_sds_stp_optimized_request_construct(
    // Build the STP task context structure
    scu_sata_reqeust_construct_task_context(this_request, task_context);
 
-   // Copy over the number of bytes to be transfered
+   // Copy over the number of bytes to be transferred
    task_context->transfer_length_bytes = transfer_length;
 
    if ( data_direction == SCI_IO_REQUEST_DATA_OUT )
@@ -1267,7 +1267,7 @@ SCI_STATUS scic_sds_stp_request_pio_data_in_copy_data(
    }
    else
    {
-      // We are transfering the whole frame so copy
+      // We are transferring the whole frame so copy
       status = scic_sds_stp_request_pio_data_in_copy_data_buffer(
          this_request, data_buffer, SCU_MAX_FRAME_BUFFER_SIZE);
 
@@ -1667,7 +1667,7 @@ SCI_STATUS scic_sds_stp_request_pio_data_out_await_data_transmit_completion_tc_c
          }
          else if (this_scic_sds_stp_request->type.pio.pio_transfer_bytes == 0)
          {
-            //this will happen if the all data is written at the first time after the pio setup fis is recieved
+            //this will happen if the all data is written at the first time after the pio setup fis is received
             all_frames_transferred  = TRUE;
          }
 
diff --git a/sys/dev/isci/scil/scic_sds_stp_request.h b/sys/dev/isci/scil/scic_sds_stp_request.h
index 20b53abafa1d..5d57acfcf1b7 100644
--- a/sys/dev/isci/scil/scic_sds_stp_request.h
+++ b/sys/dev/isci/scil/scic_sds_stp_request.h
@@ -83,7 +83,7 @@ typedef struct SCIC_SDS_STP_REQUEST
       struct
       {
          /**
-          * Total transfer for the entire PIO request recorded at request constuction
+          * Total transfer for the entire PIO request recorded at request construction
           * time.
           *
           * @todo Should we just decrement this value for each byte of data transitted
diff --git a/sys/dev/isci/scil/scic_sds_unsolicited_frame_control.c b/sys/dev/isci/scil/scic_sds_unsolicited_frame_control.c
index 2c79b7725eaa..f3fd91ad8dc3 100644
--- a/sys/dev/isci/scil/scic_sds_unsolicited_frame_control.c
+++ b/sys/dev/isci/scil/scic_sds_unsolicited_frame_control.c
@@ -279,7 +279,7 @@ SCI_STATUS scic_sds_unsolicited_frame_control_get_header(
 {
    if (frame_index < uf_control->address_table.count)
    {
-      // Skip the first word in the frame since this is a controll word used
+      // Skip the first word in the frame since this is a control word used
       // by the hardware.
       *frame_header = &uf_control->buffers.array[frame_index].header->data;
 
diff --git a/sys/dev/isci/scil/scic_task_request.h b/sys/dev/isci/scil/scic_task_request.h
index 41f57fc5562f..0b93972e8a68 100644
--- a/sys/dev/isci/scil/scic_task_request.h
+++ b/sys/dev/isci/scil/scic_task_request.h
@@ -73,7 +73,7 @@ extern "C" {
 
 /**
  * @brief This method simply returns the size required to build an SCI
- *        based task managment request object.
+ *        based task management request object.
  *
  * @return Return the size of the SCIC task request object.
  */
diff --git a/sys/dev/isci/scil/scic_user_callback.h b/sys/dev/isci/scil/scic_user_callback.h
index c8f2bdc12229..3f75c7816a67 100644
--- a/sys/dev/isci/scil/scic_user_callback.h
+++ b/sys/dev/isci/scil/scic_user_callback.h
@@ -96,7 +96,7 @@ void * scic_cb_timer_create(
 );
 
 /**
- * @brief This callback method asks the user to destory the supplied timer.
+ * @brief This callback method asks the user to destroy the supplied timer.
  *
  * @param[in]  controller This parameter specifies the controller with
  *             which this timer is to associated.
@@ -277,7 +277,7 @@ void scic_cb_task_request_complete(
  *            handle.
  * @param[in] io_request This parameter is the io request object handle
  *            for which the physical address is being requested.
- * @param[in] virtual_address This paramter is the virtual address which
+ * @param[in] virtual_address This parameter is the virtual address which
  *            is to be returned as a physical address.
  * @param[out] physical_address The physical address for the supplied virtual
  *        address.
@@ -294,14 +294,14 @@ void scic_cb_io_request_get_physical_address(
 
 /**
  * @brief This callback method asks the user to provide the number of
- *        bytes to be transfered as part of this request.
+ *        bytes to be transferred as part of this request.
  *
  * @param[in] scic_user_io_request This parameter points to the user's
  *            IO request object.  It is a cookie that allows the user to
  *            provide the necessary information for this callback.
  *
  * @return This method returns the number of payload data bytes to be
- *         transfered for this IO request.
+ *         transferred for this IO request.
  */
 U32 scic_cb_io_request_get_transfer_length(
    void * scic_user_io_request
@@ -1117,7 +1117,7 @@ void scic_cb_controller_error(
  *           the CDB address.
  * @param[in] scic_user_io_request
  *
- * @return The cdb adress.
+ * @return The cdb address.
  */
 void * scic_cb_stp_packet_io_request_get_cdb_address(
    void * scic_user_io_request
diff --git a/sys/dev/isci/scil/scif_config_parameters.h b/sys/dev/isci/scil/scif_config_parameters.h
index 71965fdb953f..d5d15bf906cf 100644
--- a/sys/dev/isci/scil/scif_config_parameters.h
+++ b/sys/dev/isci/scil/scif_config_parameters.h
@@ -116,7 +116,7 @@ typedef struct SCIF_SAS_USER_PARAMETERS
 
    /**
     * This field indicates the os/user recommends ignoring fua in translation
-    * for perfromance reasons.
+    * for performance reasons.
     */
    BOOL  ignore_fua;
 
diff --git a/sys/dev/isci/scil/scif_domain.h b/sys/dev/isci/scil/scif_domain.h
index ee639c80f09b..73ca775ef546 100644
--- a/sys/dev/isci/scil/scif_domain.h
+++ b/sys/dev/isci/scil/scif_domain.h
@@ -87,7 +87,7 @@ SCI_PORT_HANDLE_T scif_domain_get_scic_port_handle(
 );
 
 /**
- * @brief This method will find and retreive the device associated with the
+ * @brief This method will find and retrieve the device associated with the
  *        supplied SAS address if such a device exists.
  *
  * @param[in]  domain This parameter specifies the framework domain object
diff --git a/sys/dev/isci/scil/scif_io_request.h b/sys/dev/isci/scil/scif_io_request.h
index 41647d1c73f5..69d86eed7070 100644
--- a/sys/dev/isci/scil/scif_io_request.h
+++ b/sys/dev/isci/scil/scif_io_request.h
@@ -81,13 +81,13 @@ U32 scif_io_request_get_object_size(
 );
 
 /**
-* @brief This method simply the number of data bytes transfered for a
+* @brief This method simply the number of data bytes transferred for a
 *        STP or SSP io request.
 *
 * @param[in] scif_io_request This parameter specifies the framework IO
 *            handle to retrieve the number of data bytes transferred.
 *
-* @return Return the number of data bytes transfered by the io request
+* @return Return the number of data bytes transferred by the io request
 */
 U32 scif_io_request_get_number_of_bytes_transferred(
    void * scif_io_request
diff --git a/sys/dev/isci/scil/scif_sas_design.h b/sys/dev/isci/scil/scif_sas_design.h
index 4bc2825d5a44..e847b284ff85 100644
--- a/sys/dev/isci/scil/scif_sas_design.h
+++ b/sys/dev/isci/scil/scif_sas_design.h
@@ -331,7 +331,7 @@ Please refer to these files directly for further design information:
 
 The SCIF SAS SMP REMOTE DEVICE object represents the expander device and fulfills
 its SMP discover activities. The discover procedure includes a initial discover
-phase and a follwoing SATA spinup_hold release phase, if there are expander attached
+phase and a following SATA spinup_hold release phase, if there are expander attached
 SATA device is discovered and in spinup_hold conditon. The SCIF SAS SMP REMOTE DEVICE
 object also fulfills expander attached device Target Reset (Phy Control) activity.
 
diff --git a/sys/dev/isci/scil/scif_sas_domain.c b/sys/dev/isci/scil/scif_sas_domain.c
index 8261e551a3d0..c5a54fad6cd6 100644
--- a/sys/dev/isci/scil/scif_sas_domain.c
+++ b/sys/dev/isci/scil/scif_sas_domain.c
@@ -642,7 +642,7 @@ void scif_sas_domain_terminate_requests(
       while (element != NULL)
       {
          request = (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(element);
-         // The current element may be deleted from the list becasue of
+         // The current element may be deleted from the list because of
          // IO completion so advance to the next element early
          element = sci_fast_list_get_next(element);
 
@@ -1280,7 +1280,7 @@ U8 scif_sas_domain_get_smp_request_count(
    while (element != NULL)
    {
       request = (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(element);
-      // The current element may be deleted from the list becasue of
+      // The current element may be deleted from the list because of
       // IO completion so advance to the next element early
       element = sci_fast_list_get_next(element);
 
@@ -1427,7 +1427,7 @@ SCIF_SAS_REMOTE_DEVICE_T * scif_sas_domain_find_next_ea_target_reset(
       fw_domain
    ));
 
-   //search throught domain's device list to find the first sata device on spinup_hold
+   //search through domain's device list to find the first sata device on spinup_hold
    current_element = sci_abstract_list_get_front(&fw_domain->remote_device_list);
    while (current_element != NULL )
    {
diff --git a/sys/dev/isci/scil/scif_sas_remote_device_ready_substates.c b/sys/dev/isci/scil/scif_sas_remote_device_ready_substates.c
index f13166e154ff..9f6bb4a9df57 100644
--- a/sys/dev/isci/scil/scif_sas_remote_device_ready_substates.c
+++ b/sys/dev/isci/scil/scif_sas_remote_device_ready_substates.c
@@ -245,7 +245,7 @@ void scif_sas_remote_device_ready_ncq_error_substate_enter(
       pending_request =
          (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(pending_request_element);
 
-      // The current element may be deleted from the list becasue of
+      // The current element may be deleted from the list because of
       // IO completion so advance to the next element early
       pending_request_element = sci_fast_list_get_next(pending_request_element);
 
diff --git a/sys/dev/isci/scil/scif_sas_remote_device_state_handlers.c b/sys/dev/isci/scil/scif_sas_remote_device_state_handlers.c
index 2a3b9bdc516a..dc6aa4ededd8 100644
--- a/sys/dev/isci/scil/scif_sas_remote_device_state_handlers.c
+++ b/sys/dev/isci/scil/scif_sas_remote_device_state_handlers.c
@@ -668,7 +668,7 @@ SCI_STATUS scif_sas_remote_device_default_complete_task_handler(
  *        such a notification isn't supported.
  *
  * @param[in]  remote_device This parameter specifies the remote device object
- *             for which the completion notification has occured.
+ *             for which the completion notification has occurred.
  * @param[in]  completion_status This parameter specifies the status
  *             of the completion operation.
  *
@@ -694,7 +694,7 @@ void scif_sas_remote_device_default_start_complete_handler(
  *        such a notification isn't supported.
  *
  * @param[in]  remote_device This parameter specifies the remote device object
- *             for which the completion notification has occured.
+ *             for which the completion notification has occurred.
  * @param[in]  completion_status This parameter specifies the status
  *             of the completion operation.
  *
@@ -720,7 +720,7 @@ void scif_sas_remote_device_default_stop_complete_handler(
  *        notification isn't supported.
  *
  * @param[in]  remote_device This parameter specifies the remote device object
- *             for which the notification has occured.
+ *             for which the notification has occurred.
  *
  * @return none.
  */
@@ -743,7 +743,7 @@ void scif_sas_remote_device_default_ready_handler(
  *        notification isn't supported.
  *
  * @param[in]  remote_device This parameter specifies the remote device object
- *             for which the notification has occured.
+ *             for which the notification has occurred.
  *
  * @return none.
  */
diff --git a/sys/dev/isci/scil/scif_sas_stp_remote_device.c b/sys/dev/isci/scil/scif_sas_stp_remote_device.c
index 22e5c3ce298e..2ead30495346 100644
--- a/sys/dev/isci/scil/scif_sas_stp_remote_device.c
+++ b/sys/dev/isci/scil/scif_sas_stp_remote_device.c
@@ -197,7 +197,7 @@ scif_sas_stp_remote_device_get_request_by_ncq_tag(
       pending_request =
          (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(pending_request_element);
 
-      // The current element may be deleted from the list becasue of
+      // The current element may be deleted from the list because of
       // IO completion so advance to the next element early
       pending_request_element = sci_fast_list_get_next(pending_request_element);
 
diff --git a/sys/dev/isci/scil/scif_sas_stp_task_request.c b/sys/dev/isci/scil/scif_sas_stp_task_request.c
index 0a9f953e83d4..e7680d66e912 100644
--- a/sys/dev/isci/scil/scif_sas_stp_task_request.c
+++ b/sys/dev/isci/scil/scif_sas_stp_task_request.c
@@ -227,7 +227,7 @@ void scif_sas_stp_task_request_abort_task_set_failure_handler(
       pending_request =
          (SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(pending_request_element);
 
-      // The current element may be deleted from the list becasue of
+      // The current element may be deleted from the list because of
       // IO completion so advance to the next element early
       pending_request_element = sci_fast_list_get_next(pending_request_element);
 
diff --git a/sys/dev/isci/scil/scif_user_callback.h b/sys/dev/isci/scil/scif_user_callback.h
index 54784951b0fc..70ef235a13be 100644
--- a/sys/dev/isci/scil/scif_user_callback.h
+++ b/sys/dev/isci/scil/scif_user_callback.h
@@ -100,7 +100,7 @@ void * scif_cb_timer_create(
 );
 
 /**
- * @brief This callback method asks the user to destory the supplied timer.
+ * @brief This callback method asks the user to destroy the supplied timer.
  *
  * @param[in]  controller This parameter specifies the controller with
  *             which this timer is to associated.
@@ -371,14 +371,14 @@ void scif_cb_task_request_complete(
 
 /**
  * @brief This callback method asks the user to provide the number of
- *        bytes to be transfered as part of this request.
+ *        bytes to be transferred as part of this request.
  *
  * @param[in] scif_user_io_request This parameter points to the user's
  *            IO request object.  It is a cookie that allows the user to
  *            provide the necessary information for this callback.
  *
  * @return This method returns the number of payload data bytes to be
- *         transfered for this IO request.
+ *         transferred for this IO request.
  */
 U32 scif_cb_io_request_get_transfer_length(
    void * scif_user_io_request
diff --git a/sys/dev/isci/scil/scu_registers.h b/sys/dev/isci/scil/scu_registers.h
index 8157c1aadd40..a72c629afd79 100644
--- a/sys/dev/isci/scil/scu_registers.h
+++ b/sys/dev/isci/scil/scu_registers.h
@@ -913,13 +913,13 @@ typedef char LEX_REGISTERS_T;
 // To calculate the offset for other functions use
 //       BAR0 + FN# * SystemPageSize * 2
 //
-// The TCA is only accessable from FN#0 (Physical Function) and each
+// The TCA is only accessible from FN#0 (Physical Function) and each
 // is programmed by (BAR0 + SCU_SMU_TCA_OFFSET + (FN# * 0x04)) or
 //    TCA0 for FN#0 is at BAR0 + 0x0400
 //    TCA1 for FN#1 is at BAR0 + 0x0404
 //    etc.
 // ----------------------------------------------------------------------------
-// Accessable to all FN#s
+// Accessible to all FN#s
 #define SCU_SMU_PCP_OFFSET          0x0000
 #define SCU_SMU_AMR_OFFSET          0x0004
 #define SCU_SMU_ISR_OFFSET          0x0010
@@ -933,7 +933,7 @@ typedef char LEX_REGISTERS_T;
 #define SCU_SMU_CQPR_OFFSET         0x0040
 #define SCU_SMU_CQGR_OFFSET         0x0044
 #define SCU_SMU_CQC_OFFSET          0x0048
-// Accessable to FN#0 only
+// Accessible to FN#0 only
 #define SCU_SMU_RNCLBAR_OFFSET      0x0080
 #define SCU_SMU_RNCUBAR_OFFSET      0x0084
 #define SCU_SMU_DCC_OFFSET          0x0090
@@ -942,9 +942,9 @@ typedef char LEX_REGISTERS_T;
 #define SCU_SMU_SCUSRCR_OFFSET      0x009C
 #define SCU_SMU_SMAW_OFFSET         0x00A0
 #define SCU_SMU_SMDW_OFFSET         0x00A4
-// Accessable to FN#0 only
+// Accessible to FN#0 only
 #define SCU_SMU_TCA_OFFSET          0x0400
-// Accessable to all FN#s
+// Accessible to all FN#s
 #define SCU_SMU_MT_MLAR0_OFFSET     0x2000
 #define SCU_SMU_MT_MUAR0_OFFSET     0x2004
 #define SCU_SMU_MT_MDR0_OFFSET      0x2008
@@ -999,7 +999,7 @@ typedef struct SMU_REGISTERS
    U32   reserved_5x[4];
    U32   reserved_6x[4];
    U32   reserved_7x[4];
-// Accessable to FN#0 only
+// Accessible to FN#0 only
 // 0x0080 RNCLBAR
    U32   remote_node_context_lower;
 // 0x0084 RNCUBAR
@@ -1031,7 +1031,7 @@ typedef struct SMU_REGISTERS
    U32   reserved_1xx[64];
    U32   reserved_2xx[64];
    U32   reserved_3xx[64];
-// Accessable to FN#0 only
+// Accessible to FN#0 only
 // 0x0400 TCA
    U32   task_context_assignment[256];
 // MSI-X registers not included
diff --git a/sys/dev/isci/scil/scu_task_context.h b/sys/dev/isci/scil/scu_task_context.h
index f73ce6453af4..39a639672f3e 100644
--- a/sys/dev/isci/scil/scu_task_context.h
+++ b/sys/dev/isci/scil/scu_task_context.h
@@ -172,7 +172,7 @@ typedef enum
 #define SCU_TASK_REGULAR                  0
 #define SCU_TASK_ABORTED                  1
 
-//direction bit defintion
+//direction bit definition
 /**
  * @name SATA_DIRECTION
  */
@@ -483,7 +483,7 @@ typedef struct SCU_SGL_ELEMENT
  * @brief This structure is the SCU hardware definition of a pair of SGL
  *        elements.
  *
- * The SCU hardware always works on SGL pairs.  They are refered to in the DS
+ * The SCU hardware always works on SGL pairs.  They are referred to in the DS
  * specification as SGL A and SGL B.  Each SGL pair is followed by the address
  * of the next pair.
  */
@@ -706,7 +706,7 @@ typedef struct SCU_TASK_CONTEXT
    U32    strict_ordering              : 1;
 
    /**
-    * This field indicates the type of endianess to be utilized for the
+    * This field indicates the type of endianness to be utilized for the
     * frame.  command, task, and response frames utilized control_frame
     * set to 1.
     */
@@ -793,7 +793,7 @@ typedef struct SCU_TASK_CONTEXT
 
    // OFFSET 0x14
    /**
-    * This filed is set to the number of bytes to be transfered in the request.
+    * This filed is set to the number of bytes to be transferred in the request.
     */
    U32    transfer_length_bytes       : 24;   // In terms of bytes
 
@@ -804,7 +804,7 @@ typedef struct SCU_TASK_CONTEXT
 
    // OFFSET 0x18-0x2C
    /**
-    * This union provides for the protocol specif part of the SCU Task Context.
+    * This union provides for the protocol specific part of the SCU Task Context.
     */
    union PROTOCOL_CONTEXT  type;
 
diff --git a/sys/dev/iscsi_initiator/isc_cam.c b/sys/dev/iscsi_initiator/isc_cam.c
index e53a0fb66ced..02ed91aec917 100644
--- a/sys/dev/iscsi_initiator/isc_cam.c
+++ b/sys/dev/iscsi_initiator/isc_cam.c
@@ -227,7 +227,7 @@ ic_action(struct cam_sim *sim, union ccb *ccb)
 	  if(ccg->block_size == 0 ||
 	     (ccg->volume_size < ccg->block_size)) {
 	       // print error message  ...
-	       /* XXX: what error is appropiate? */
+	       /* XXX: what error is appropriate? */
 	       break;
 	  } 
 	  else {
diff --git a/sys/dev/iscsi_initiator/isc_soc.c b/sys/dev/iscsi_initiator/isc_soc.c
index adb9914c00f7..228267716b58 100644
--- a/sys/dev/iscsi_initiator/isc_soc.c
+++ b/sys/dev/iscsi_initiator/isc_soc.c
@@ -222,7 +222,7 @@ isc_sendPDU(isc_session_t *sp, pduq_t *pq)
      if(pq->pdu.ds_addr &&  pp->ds_len) {
 	  iv->iov_base = pp->ds_addr;
 	  iv->iov_len = pp->ds_len;
-	  while(iv->iov_len & 03) // the specs say it must be int alligned
+	  while(iv->iov_len & 03) // the specs say it must be int aligned
 	       iv->iov_len++;
 	  uio->uio_resid += iv->iov_len ;
 	  iv++;
diff --git a/sys/dev/iscsi_initiator/iscsi.c b/sys/dev/iscsi_initiator/iscsi.c
index 99f727e78a5c..e607f18a7296 100644
--- a/sys/dev/iscsi_initiator/iscsi.c
+++ b/sys/dev/iscsi_initiator/iscsi.c
@@ -150,7 +150,7 @@ iscsi_close(struct cdev *dev, int flag, int otyp, struct thread *td)
 	  sdebug(3, "sp->flags=%x", sp->flags );
 	  /*
 	   | if still in full phase, this probably means
-	   | that something went realy bad.
+	   | that something went really bad.
 	   | it could be a result from 'shutdown', in which case
 	   | we will ignore it (so buffers can be flushed).
 	   | the problem is that there is no way of differentiating
diff --git a/sys/dev/isp/DriverManual.txt b/sys/dev/isp/DriverManual.txt
index 3d2f0fce366a..ded4f3a976c3 100644
--- a/sys/dev/isp/DriverManual.txt
+++ b/sys/dev/isp/DriverManual.txt
@@ -69,7 +69,7 @@ are planned.
 3. Driver Design Goals
 
 The driver has not started out as one normally would do such an effort.
-Normally you design via top-down methodologies and set an intial goal
+Normally you design via top-down methodologies and set an initial goal
 and meet it. This driver has had a design goal that changes from almost
 the very first. This has been an extremely peculiar, if not risque,
 experience. As a consequence, this section of this document contains
@@ -127,7 +127,7 @@ means that at the same host visible address if you write a mailbox
 register, that is a write to an (incoming, to the HBA) mailbox register,
 while a read to the same address reads another (outgoing, to the HBA)
 mailbox register with completely different data. Each HBA also then has
-core and auxillary logic which either is used to interface to a SCSI bus
+core and auxiliary logic which either is used to interface to a SCSI bus
 (or to external bus drivers that connect to a SCSI bus), or to connect
 to a Fibre Channel bus.
 
@@ -310,7 +310,7 @@ queues (as well as a Fibre Channel scratch area if this is a Fibre
 Channel HBA).  The reason this is considered 'bus dependent' is that
 only the bus dependent module may have the information that says how
 one could perform I/O mapping and dependent (e.g., on a Solaris system)
-on the Request and Reponse queues. Another callback can enable the *use*
+on the Request and Response queues. Another callback can enable the *use*
 of interrupts should this platform be able to finish configuration in
 interrupt driven mode.
 
@@ -325,7 +325,7 @@ here in clarifying some of this.
 
 5.4 Initiator Mode Command Code Flow
 
-A succesful execution of isp_init will lead to the driver 'registering'
+A successful execution of isp_init will lead to the driver 'registering'
 itself with this platform's SCSI subsystem. One assumed action for this
 is the registry of a function that the SCSI subsystem for this platform
 will call when it has a SCSI command to run.
diff --git a/sys/dev/isp/isp.c b/sys/dev/isp/isp.c
index ceb54edf9b25..ff1d29fdc83f 100644
--- a/sys/dev/isp/isp.c
+++ b/sys/dev/isp/isp.c
@@ -5871,7 +5871,7 @@ isp_parse_async_fc(ispsoftc_t *isp, uint16_t mbox)
 			}
 #endif
 			/*
-			 * We've had problems with data corruption occuring on
+			 * We've had problems with data corruption occurring on
 			 * commands that complete (with no apparent error) after
 			 * we receive a LIP. This has been observed mostly on
 			 * Local Loop topologies. To be safe, let's just mark
@@ -6455,7 +6455,7 @@ isp_parse_status(ispsoftc_t *isp, ispstatusreq_t *sp, XS_T *xs, long *rp)
 		 * isn't an error, per se.
 		 *
 		 * Unfortunately, some QLogic f/w writers have, in
-		 * some cases, ommitted to *set* status to QFULL.
+		 * some cases, omitted to *set* status to QFULL.
 		 */
 #if	0
 		if (*XS_STSP(xs) != SCSI_GOOD && XS_NOERR(xs)) {
diff --git a/sys/dev/isp/ispvar.h b/sys/dev/isp/ispvar.h
index a97a04fa0ac3..fe06a982cb19 100644
--- a/sys/dev/isp/ispvar.h
+++ b/sys/dev/isp/ispvar.h
@@ -356,9 +356,9 @@ typedef struct {
  * index to put it into the Database, but that's just an optimization. We mark
  * the entry VALID and make sure that the target index is updated and correct.
  *
- * When we get done searching the local loop, we then search similarily for
+ * When we get done searching the local loop, we then search similarly for
  * a list of devices we've gotten from the fabric name controller (if we're
- * on a fabric). VALID marking is also done similarily.
+ * on a fabric). VALID marking is also done similarly.
  *
  * When all of this is done, we can march through the database and clean up
  * any entry that is still PROBATIONAL (these represent devices which have
@@ -1040,7 +1040,7 @@ void isp_prt_endcmd(ispsoftc_t *, XS_T *);
  *	XS_STSP(xs)		gets a pointer to the SCSI status byte ""
  *	XS_SNSP(xs)		gets a pointer to the associate sense data
  *	XS_TOT_SNSLEN(xs)	gets the total length of sense data storage
- *	XS_CUR_SNSLEN(xs)	gets the currently used lenght of sense data storage
+ *	XS_CUR_SNSLEN(xs)	gets the currently used length of sense data storage
  *	XS_SNSKEY(xs)		dereferences XS_SNSP to get the current stored Sense Key
  *	XS_SNSASC(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code
  *	XS_SNSASCQ(xs)		dereferences XS_SNSP to get the current stored Additional Sense Code Qualifier
diff --git a/sys/dev/iwi/if_iwireg.h b/sys/dev/iwi/if_iwireg.h
index bc05ad2caac7..0e837ffa9aad 100644
--- a/sys/dev/iwi/if_iwireg.h
+++ b/sys/dev/iwi/if_iwireg.h
@@ -481,7 +481,7 @@ struct iwi_scan {
 #define IWI_SCAN_TYPES			5
 
 /* scan result codes */
-#define IWI_SCAN_COMPLETED		1 /* scan compeleted sucessfully */
+#define	IWI_SCAN_COMPLETED		1 /* scan compeleted successfully */
 #define IWI_SCAN_ABORTED		2 /* scan was aborted by the driver */
 
 /* structure for command IWI_CMD_SCAN_EXT */
diff --git a/sys/dev/iwm/if_iwmreg.h b/sys/dev/iwm/if_iwmreg.h
index dc32b98f0503..1fc438b0cce5 100644
--- a/sys/dev/iwm/if_iwmreg.h
+++ b/sys/dev/iwm/if_iwmreg.h
@@ -1869,7 +1869,7 @@ enum {
  * struct iwm_error_resp - FW error indication
  * ( IWM_REPLY_ERROR = 0x2 )
  * @error_type: one of IWM_FW_ERR_*
- * @cmd_id: the command ID for which the error occured
+ * @cmd_id: the command ID for which the error occurred
  * @bad_cmd_seq_num: sequence number of the erroneous command
  * @error_service: which service created the error, applicable only if
  *	error_type = 2, otherwise 0
@@ -2855,7 +2855,7 @@ enum iwm_sf_scenario {
 /**
  * Smart Fifo configuration command.
  * @state: smart fifo state, types listed in iwm_sf_sate.
- * @watermark: Minimum allowed availabe free space in RXF for transient state.
+ * @watermark: Minimum allowed available free space in RXF for transient state.
  * @long_delay_timeouts: aging and idle timer values for each scenario
  * in long delay state.
  * @full_on_timeouts: timer values for each scenario in full on state.
@@ -3411,12 +3411,12 @@ struct iwm_uapsd_misbehaving_ap_notif {
  *      calculated for this and the last passed beacon is greater than this
  *      threshold. Zero value means that the temperature change is ignored for
  *      beacon filtering; beacons will not be  forced to be sent to driver
- *      regardless of whether its temerature has been changed.
+ *      regardless of whether its temperature has been changed.
  * @bf_temp_slow_filter: Send Beacon to driver if delta in temperature values
  *      calculated for this and the last passed beacon is greater than this
  *      threshold. Zero value means that the temperature change is ignored for
  *      beacon filtering; beacons will not be forced to be sent to driver
- *      regardless of whether its temerature has been changed.
+ *      regardless of whether its temperature has been changed.
  * @bf_enable_beacon_filter: 1, beacon filtering is enabled; 0, disabled.
  * @bf_filter_escape_timer: Send beacons to to driver if no beacons were passed
  *      for a specific period of time. Units: Beacons.
@@ -4439,7 +4439,7 @@ enum iwm_scan_type {
  * @rxchain_sel_flags: RXON_RX_CHAIN_*
  * @max_out_time: in usecs, max out of serving channel time
  * @suspend_time: how long to pause scan when returning to service channel:
- *	bits 0-19: beacon interal in usecs (suspend before executing)
+ *	bits 0-19: beacon interval in usecs (suspend before executing)
  *	bits 20-23: reserved
  *	bits 24-31: number of beacons (suspend between channels)
  * @rxon_flags: RXON_FLG_*
diff --git a/sys/dev/iwm/if_iwmvar.h b/sys/dev/iwm/if_iwmvar.h
index 6d8b8872e29a..849ded782e06 100644
--- a/sys/dev/iwm/if_iwmvar.h
+++ b/sys/dev/iwm/if_iwmvar.h
@@ -458,7 +458,7 @@ struct iwm_softc {
 
 	/*
 	 * So why do we need a separate stopped flag and a generation?
-	 * the former protects the device from issueing commands when it's
+	 * the former protects the device from issuing commands when it's
 	 * stopped (duh).  The latter protects against race from a very
 	 * fast stop/unstop cycle where threads waiting for responses do
 	 * not have a chance to run in between.  Notably: we want to stop
diff --git a/sys/dev/iwn/if_iwn.c b/sys/dev/iwn/if_iwn.c
index 65724e7c5dbd..6a740d319bb0 100644
--- a/sys/dev/iwn/if_iwn.c
+++ b/sys/dev/iwn/if_iwn.c
@@ -5251,7 +5251,7 @@ iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni)
 		 * will not be using MIMO.
 		 *
 		 * Since we're filling linkq from 0..15 and we're filling
-		 * from the higest MCS rates to the lowest rates, if we
+		 * from the highest MCS rates to the lowest rates, if we
 		 * _are_ doing a dual-stream rate, set mimo to idx+1 (ie,
 		 * the next entry.)  That way if the next entry is a non-MIMO
 		 * entry, we're already pointing at it.
diff --git a/sys/dev/ixgb/ixgb_ee.c b/sys/dev/ixgb/ixgb_ee.c
index 4ce650e1dad8..3dcd630c791f 100644
--- a/sys/dev/ixgb/ixgb_ee.c
+++ b/sys/dev/ixgb/ixgb_ee.c
@@ -375,7 +375,7 @@ ixgb_update_eeprom_checksum(struct ixgb_hw *hw)
  *
  * hw - Struct containing variables accessed by shared code
  * reg - offset within the EEPROM to be written to
- * data - 16 bit word to be writen to the EEPROM
+ * data - 16 bit word to be written to the EEPROM
  *
  * If ixgb_update_eeprom_checksum is not called after this function, the
  * EEPROM will most likely contain an invalid checksum.
diff --git a/sys/dev/ixgb/ixgb_hw.c b/sys/dev/ixgb/ixgb_hw.c
index 23b0b2846e59..2985994cae55 100644
--- a/sys/dev/ixgb/ixgb_hw.c
+++ b/sys/dev/ixgb/ixgb_hw.c
@@ -939,7 +939,7 @@ ixgb_check_for_link(struct ixgb_hw *hw)
 }
 
 /******************************************************************************
- * Check for a bad link condition that may have occured.
+ * Check for a bad link condition that may have occurred.
  * The indication is that the RFC / LFC registers may be incrementing
  * continually.  A full adapter reset is required to recover.
  *
diff --git a/sys/dev/jme/if_jmereg.h b/sys/dev/jme/if_jmereg.h
index f7dfb129e836..d778b7f340d4 100644
--- a/sys/dev/jme/if_jmereg.h
+++ b/sys/dev/jme/if_jmereg.h
@@ -925,7 +925,7 @@
 #define	TIMER3_TIMEOUT_COUNT_SHIFT	8
 #define	TIMER3_TIMEOUT_VALUE_SHIFT	1
 
-/* Aggresive power mode control. */
+/* Aggressive power mode control. */
 #define	JME_APMC		0x087C
 #define	APMC_PCIE_SDOWN_STAT	0x80000000
 #define	APMC_PCIE_SDOWN_ENB	0x40000000
diff --git a/sys/dev/jme/if_jmevar.h b/sys/dev/jme/if_jmevar.h
index 1a1e81cc637d..cffab5a90319 100644
--- a/sys/dev/jme/if_jmevar.h
+++ b/sys/dev/jme/if_jmevar.h
@@ -35,7 +35,7 @@
 #include <sys/taskqueue.h>
 
 /*
- * JMC250 supports upto 1024 descriptors and the number of
+ * JMC250 supports up to 1024 descriptors and the number of
  * descriptors should be multiple of 16.
  */
 #define	JME_TX_RING_CNT		384
diff --git a/sys/dev/kbd/kbd.c b/sys/dev/kbd/kbd.c
index 985a96040405..389ef7575bb5 100644
--- a/sys/dev/kbd/kbd.c
+++ b/sys/dev/kbd/kbd.c
@@ -283,7 +283,7 @@ kbd_unregister(keyboard_t *kbd)
 	return (0);
 }
 
-/* find a funciton table by the driver name */
+/* find a function table by the driver name */
 keyboard_switch_t
 *kbd_get_switch(char *driver)
 {
diff --git a/sys/dev/lge/if_lge.c b/sys/dev/lge/if_lge.c
index 9aef1313c598..721aee8974e0 100644
--- a/sys/dev/lge/if_lge.c
+++ b/sys/dev/lge/if_lge.c
@@ -1074,7 +1074,7 @@ lge_intr(arg)
 	ifp = sc->lge_ifp;
 	LGE_LOCK(sc);
 
-	/* Supress unwanted interrupts */
+	/* Suppress unwanted interrupts */
 	if (!(ifp->if_flags & IFF_UP)) {
 		lge_stop(sc);
 		LGE_UNLOCK(sc);
diff --git a/sys/dev/lmc/if_lmc.c b/sys/dev/lmc/if_lmc.c
index fe22edfe2466..cf030c7ada79 100644
--- a/sys/dev/lmc/if_lmc.c
+++ b/sys/dev/lmc/if_lmc.c
@@ -1268,7 +1268,7 @@ t3_send_dbl_feac(softc_t *sc, int feac1, int feac2)
   /* Flush received FEACS; don't respond to our own loop cmd! */
   while (read_framer(sc, T3CSR_FEAC_STK) & FEAC_STK_VALID) DELAY(1); /* XXX HANG */
   /* Restore previous state of the FEAC transmitter. */
-  /* If it was sending a continous FEAC, it will resume. */
+  /* If it was sending a continuous FEAC, it will resume. */
   write_framer(sc, T3CSR_TX_FEAC, tx_feac);
   }
 
diff --git a/sys/dev/lmc/if_lmc.h b/sys/dev/lmc/if_lmc.h
index 8291dcd6ef22..01213758ee9c 100644
--- a/sys/dev/lmc/if_lmc.h
+++ b/sys/dev/lmc/if_lmc.h
@@ -236,14 +236,14 @@
 
 /* T3   GPIO bits */
 #define GPIO_T3_DAC		0x04	/* DAC chip select                 */
-#define GPIO_T3_INTEN		0x08	/* Framer Interupt enable          */
+#define	GPIO_T3_INTEN		0x08	/* Framer Interrupt enable          */
 
 /* SSI  GPIO bits */
 #define GPIO_SSI_SYNTH		0x04	/* Synth osc chip select           */
 #define GPIO_SSI_DCE		0x08	/* provide clock on TXCLOCK output */
 
 /* T1E1 GPIO bits */
-#define GPIO_T1_INTEN		0x08	/* Framer Interupt enable          */
+#define	GPIO_T1_INTEN		0x08	/* Framer Interrupt enable          */
 
 /* MII register 16 bits common to all cards */
 /* NB: LEDs  for HSSI & SSI are in DIFFERENT bits than for T1E1 & T3; oops */
diff --git a/sys/dev/mfi/mfi.c b/sys/dev/mfi/mfi.c
index 05751ba6dfa0..021a4243f6ba 100644
--- a/sys/dev/mfi/mfi.c
+++ b/sys/dev/mfi/mfi.c
@@ -539,7 +539,7 @@ mfi_attach(struct mfi_softc *sc)
 
 		/*
 		  Allocate DMA memory mapping for MPI2 IOC Init descriptor,
-		  we are taking it diffrent from what we have allocated for Request
+		  we are taking it different from what we have allocated for Request
 		  and reply descriptors to avoid confusion later
 		*/
 		tb_mem_size = sizeof(struct MPI2_IOC_INIT_REQUEST);
@@ -2351,7 +2351,7 @@ mfi_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 	/*
 	 * We need to check if we have the lock as this is async
 	 * callback so even though our caller mfi_mapcmd asserts
-	 * it has the lock, there is no garantee that hasn't been
+	 * it has the lock, there is no guarantee that hasn't been
 	 * dropped if bus_dmamap_load returned prior to our
 	 * completion.
 	 */
diff --git a/sys/dev/mfi/mfi_tbolt.c b/sys/dev/mfi/mfi_tbolt.c
index 984c355321e7..3f83eb95962b 100644
--- a/sys/dev/mfi/mfi_tbolt.c
+++ b/sys/dev/mfi/mfi_tbolt.c
@@ -1148,7 +1148,7 @@ mfi_tbolt_send_frame(struct mfi_softc *sc, struct mfi_command *cm)
 	 * This is a polled command, so busy-wait for it to complete.
 	 *
 	 * The value of hdr->cmd_status is updated directly by the hardware
-	 * so there is no garantee that mfi_tbolt_complete_cmd is called
+	 * so there is no guarantee that mfi_tbolt_complete_cmd is called
 	 * prior to this value changing.
 	 */
 	while (hdr->cmd_status == MFI_STAT_INVALID_STATUS) {
@@ -1351,7 +1351,7 @@ mfi_process_fw_state_chg_isr(void *arg)
  * interrupt thread.
  *
  * The driver could get the RAID state via the MFI_DCMD_LD_MAP_GET_INFO
- * That requires a bunch of structure and it is simplier to just do
+ * That requires a bunch of structure and it is simpler to just do
  * the MFI_DCMD_LD_GET_LIST versus walking the RAID map.
  */
 
diff --git a/sys/dev/mge/if_mgevar.h b/sys/dev/mge/if_mgevar.h
index 31b9ac379a14..e161055afbaa 100644
--- a/sys/dev/mge/if_mgevar.h
+++ b/sys/dev/mge/if_mgevar.h
@@ -370,7 +370,7 @@ struct mge_softc {
 /* RX error codes */
 #define MGE_RX_ERROR_CE		(0 << 1)	/* CRC error */
 #define MGE_RX_ERROR_OR		(1 << 1)	/* Overrun error */
-#define MGE_RX_ERROR_MF		(2 << 1)	/* Max frame lenght error */
+#define	MGE_RX_ERROR_MF		(2 << 1)	/* Max frame length error */
 #define MGE_RX_ERROR_RE		(3 << 1)	/* Resource error */
 
 #endif /* __IF_MGE_H__ */
diff --git a/sys/dev/mlx/mlx_disk.c b/sys/dev/mlx/mlx_disk.c
index 3b8666540c98..2464dd526748 100644
--- a/sys/dev/mlx/mlx_disk.c
+++ b/sys/dev/mlx/mlx_disk.c
@@ -170,7 +170,7 @@ mlxd_strategy(struct bio *bp)
 
  bad:
     /*
-     * Correctly set the bio to indicate a failed tranfer.
+     * Correctly set the bio to indicate a failed transfer.
      */
     bp->bio_resid = bp->bio_bcount;
     biodone(bp);
diff --git a/sys/dev/mly/mly.c b/sys/dev/mly/mly.c
index 7c4ed41b0ee6..cbae4821319e 100644
--- a/sys/dev/mly/mly.c
+++ b/sys/dev/mly/mly.c
@@ -1931,7 +1931,7 @@ mly_unmap_command(struct mly_command *mc)
  * the kernel environment variable "hw.mly.register_physical_channels" is set.
  *
  * When we refer to a "bus", we are referring to the bus number registered with
- * the SIM, wheras a "channel" is a channel number given to the adapter.  In order
+ * the SIM, whereas a "channel" is a channel number given to the adapter.  In order
  * to keep things simple, we map these 1:1, so "bus" and "channel" may be used
  * interchangeably.
  */
diff --git a/sys/dev/mly/mlyreg.h b/sys/dev/mly/mlyreg.h
index a4106a57b003..9e5715b61b4d 100644
--- a/sys/dev/mly/mlyreg.h
+++ b/sys/dev/mly/mlyreg.h
@@ -138,7 +138,7 @@ struct mly_sg_entry {
  */
 struct mly_lun_map {
     u_int8_t	res1:4;
-    u_int8_t	host_port_mapped:1;	/* this system drive visibile to host on this controller/port combination */
+    u_int8_t	host_port_mapped:1;	/* this system drive visible to host on this controller/port combination */
     u_int8_t	tid_valid:1;		/* target ID valid */
     u_int8_t	hid_valid:1;		/* host ID valid */
     u_int8_t	lun_valid:1;		/* LUN valid */
@@ -1208,7 +1208,7 @@ union mly_command_packet {
  * PG6: 5.4.4 Doorbell 1
  *
  * Note that the documentation claims that these bits are set when the
- * status queue(s) are empty, wheras the Linux driver and experience 
+ * status queue(s) are empty, whereas the Linux driver and experience 
  * suggest they are set when there is status available.
  */
 #define MLY_HM_STSREADY			(1<<0)
diff --git a/sys/dev/mmc/mmcreg.h b/sys/dev/mmc/mmcreg.h
index b169d26e732d..f25c0f63e36a 100644
--- a/sys/dev/mmc/mmcreg.h
+++ b/sys/dev/mmc/mmcreg.h
@@ -441,7 +441,7 @@ struct mmc_sd_status
  * Older versions of the MMC standard had a variable sector size.  However,
  * I've been able to find no old MMC or SD cards that have a non 512
  * byte sector size anywhere, so we assume that such cards are very rare
- * and only note their existance in passing here...
+ * and only note their existence in passing here...
  */
 #define MMC_SECTOR_SIZE	512
 
diff --git a/sys/dev/mn/if_mn.c b/sys/dev/mn/if_mn.c
index 0356f53e42a2..a4ec603876d9 100644
--- a/sys/dev/mn/if_mn.c
+++ b/sys/dev/mn/if_mn.c
@@ -1186,7 +1186,7 @@ mn_rx_intr(struct mn_softc *sc, u_int32_t vector)
 
 
 /*
- * Interupt handler
+ * Interrupt handler
  */
 
 static void
diff --git a/sys/dev/mpr/mpi/mpi2_history.txt b/sys/dev/mpr/mpi/mpi2_history.txt
index 9fca7966f65a..e8432376b0a2 100644
--- a/sys/dev/mpr/mpi/mpi2_history.txt
+++ b/sys/dev/mpr/mpi/mpi2_history.txt
@@ -305,7 +305,7 @@ mpi2_init.h
  *  05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
  *  10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
  *                      Control field Task Attribute flags.
- *                      Moved LUN field defines to mpi2.h becasue they are
+ *                      Moved LUN field defines to mpi2.h because they are
  *                      common to many structures.
  *  05-06-09  02.00.07  Changed task management type of Query Unit Attention to
  *                      Query Asynchronous Event.
diff --git a/sys/dev/mpr/mpi/mpi2_init.h b/sys/dev/mpr/mpi/mpi2_init.h
index 5f475c0e26ba..5b7364332962 100644
--- a/sys/dev/mpr/mpi/mpi2_init.h
+++ b/sys/dev/mpr/mpi/mpi2_init.h
@@ -61,7 +61,7 @@
  *  05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
  *  10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
  *                      Control field Task Attribute flags.
- *                      Moved LUN field defines to mpi2.h becasue they are
+ *                      Moved LUN field defines to mpi2.h because they are
  *                      common to many structures.
  *  05-06-09  02.00.07  Changed task management type of Query Unit Attention to
  *                      Query Asynchronous Event.
diff --git a/sys/dev/mpr/mpr.c b/sys/dev/mpr/mpr.c
index 6fe08b07b437..558015722121 100644
--- a/sys/dev/mpr/mpr.c
+++ b/sys/dev/mpr/mpr.c
@@ -2671,7 +2671,7 @@ mpr_request_polled(struct mpr_softc *sc, struct mpr_command *cm)
 
 /*
  * The MPT driver had a verbose interface for config pages.  In this driver,
- * reduce it to much simplier terms, similar to the Linux driver.
+ * reduce it to much simpler terms, similar to the Linux driver.
  */
 int
 mpr_read_config_page(struct mpr_softc *sc, struct mpr_config_params *params)
diff --git a/sys/dev/mpr/mpr_mapping.h b/sys/dev/mpr/mpr_mapping.h
index c00a3b795122..fafaf9bc928d 100644
--- a/sys/dev/mpr/mpr_mapping.h
+++ b/sys/dev/mpr/mpr_mapping.h
@@ -33,7 +33,7 @@
 #define _MPR_MAPPING_H
 
 /**
- * struct _map_phy_change - PHY entries recieved in Topology change list
+ * struct _map_phy_change - PHY entries received in Topology change list
  * @physical_id: SAS address of the device attached with the associate PHY
  * @device_info: bitfield provides detailed info about the device
  * @dev_handle: device handle for the device pointed by this entry
diff --git a/sys/dev/mpr/mpr_sas_lsi.c b/sys/dev/mpr/mpr_sas_lsi.c
index b2ffe9615c0a..f162d1f37ace 100644
--- a/sys/dev/mpr/mpr_sas_lsi.c
+++ b/sys/dev/mpr/mpr_sas_lsi.c
@@ -717,7 +717,7 @@ mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate){
 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
 		}
 	}
-	/* TODO Check proper endianess */
+	/* TODO Check proper endianness */
 	sas_address = config_page.SASAddress.High;
 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
 	mpr_dprint(sc, MPR_INFO, "SAS Address from SAS device page0 = %jx\n",
diff --git a/sys/dev/mps/mpi/mpi2_history.txt b/sys/dev/mps/mpi/mpi2_history.txt
index d0c2c1d2383c..45af49025104 100644
--- a/sys/dev/mps/mpi/mpi2_history.txt
+++ b/sys/dev/mps/mpi/mpi2_history.txt
@@ -247,7 +247,7 @@ mpi2_init.h
  *  05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
  *  10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
  *                      Control field Task Attribute flags.
- *                      Moved LUN field defines to mpi2.h becasue they are
+ *                      Moved LUN field defines to mpi2.h because they are
  *                      common to many structures.
  *  05-06-09  02.00.07  Changed task management type of Query Unit Attention to
  *                      Query Asynchronous Event.
diff --git a/sys/dev/mps/mpi/mpi2_init.h b/sys/dev/mps/mpi/mpi2_init.h
index 189e457017e2..a75873ceee0a 100644
--- a/sys/dev/mps/mpi/mpi2_init.h
+++ b/sys/dev/mps/mpi/mpi2_init.h
@@ -53,7 +53,7 @@
  *  05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
  *  10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
  *                      Control field Task Attribute flags.
- *                      Moved LUN field defines to mpi2.h becasue they are
+ *                      Moved LUN field defines to mpi2.h because they are
  *                      common to many structures.
  *  05-06-09  02.00.07  Changed task management type of Query Unit Attention to
  *                      Query Asynchronous Event.
diff --git a/sys/dev/mps/mps.c b/sys/dev/mps/mps.c
index ce24eed1eaa2..b564b335efd7 100644
--- a/sys/dev/mps/mps.c
+++ b/sys/dev/mps/mps.c
@@ -782,7 +782,7 @@ mps_wait_db_ack(struct mps_softc *sc, int timeout, int sleep_flag)
 		int_status = mps_regread(sc, MPI2_HOST_INTERRUPT_STATUS_OFFSET);
 		if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
 			mps_dprint(sc, MPS_INIT, 
-			"%s: successfull count(%d), timeout(%d)\n",
+			"%s: successful count(%d), timeout(%d)\n",
 			__func__, count, timeout);
 		return 0;
 		} else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
@@ -1907,7 +1907,7 @@ mps_intr_locked(void *data)
 				       sc->reply_frames, sc->fqdepth,
 				       sc->facts->ReplyFrameSize * 4);
 				printf("%s: baddr %#x,\n", __func__, baddr);
-				/* LSI-TODO. See Linux Code. Need Gracefull exit*/
+				/* LSI-TODO. See Linux Code. Need Graceful exit*/
 				panic("Reply address out of range");
 			}
 			if (le16toh(desc->AddressReply.SMID) == 0) {
@@ -2192,7 +2192,7 @@ mps_add_chain(struct mps_command *cm)
 	 *	sgc->Flags = ( MPI2_SGE_FLAGS_CHAIN_ELEMENT | MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
 	 *	            MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT
 	 *	This is fine.. because we are not using simple element. In case of 
-	 *	MPI2_SGE_CHAIN32, we have seperate Length and Flags feild.
+	 *	MPI2_SGE_CHAIN32, we have separate Length and Flags feild.
  	 */
 	sgc->Flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT;
 	sgc->Address = htole32(chain->chain_busaddr);
@@ -2558,7 +2558,7 @@ mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
 
 /*
  * The MPT driver had a verbose interface for config pages.  In this driver,
- * reduce it to much simplier terms, similar to the Linux driver.
+ * reduce it to much simpler terms, similar to the Linux driver.
  */
 int
 mps_read_config_page(struct mps_softc *sc, struct mps_config_params *params)
diff --git a/sys/dev/mps/mps_config.c b/sys/dev/mps/mps_config.c
index 9ecfbb3f36e3..c21506d39825 100644
--- a/sys/dev/mps/mps_config.c
+++ b/sys/dev/mps/mps_config.c
@@ -366,7 +366,7 @@ mps_base_static_config_pages(struct mps_softc *sc)
 
 /**
  * mps_wd_config_pages - get info required to support WarpDrive.  This needs to
- *    be called after discovery is complete to guarentee that IR info is there.
+ *    be called after discovery is complete to guarantee that IR info is there.
  * @sc: per adapter object
  *
  * Return nothing.
diff --git a/sys/dev/mps/mps_mapping.h b/sys/dev/mps/mps_mapping.h
index c370d504bfd7..9803b806e596 100644
--- a/sys/dev/mps/mps_mapping.h
+++ b/sys/dev/mps/mps_mapping.h
@@ -33,7 +33,7 @@
 #define _MPS_MAPPING_H
 
 /**
- * struct _map_phy_change - PHY entries recieved in Topology change list
+ * struct _map_phy_change - PHY entries received in Topology change list
  * @physical_id: SAS address of the device attached with the associate PHY
  * @device_info: bitfield provides detailed info about the device
  * @dev_handle: device handle for the device pointed by this entry
diff --git a/sys/dev/mps/mps_sas.c b/sys/dev/mps/mps_sas.c
index 8cba1d72286c..a4dd3e1a4c78 100644
--- a/sys/dev/mps/mps_sas.c
+++ b/sys/dev/mps/mps_sas.c
@@ -2502,7 +2502,7 @@ mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm,
 			 * Check if the I/O crosses a stripe boundary.  If not,
 			 * translate the virtual LBA to a physical LBA and set
 			 * the DevHandle for the PhysDisk to be used.  If it
-			 * does cross a boundry, do normal I/O.  To get the
+			 * does cross a boundary, do normal I/O.  To get the
 			 * right DevHandle to use, get the map number for the
 			 * column, then use that map number to look up the
 			 * DevHandle of the PhysDisk.
@@ -2588,7 +2588,7 @@ mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm,
 				 * If not, translate the virtual LBA to a
 				 * physical LBA and set the DevHandle for the
 				 * PhysDisk to be used.  If it does cross a
-				 * boundry, do normal I/O.  To get the right
+				 * boundary, do normal I/O.  To get the right
 				 * DevHandle to use, get the map number for the
 				 * column, then use that map number to look up
 				 * the DevHandle of the PhysDisk.
@@ -2666,7 +2666,7 @@ mpssas_direct_drive_io(struct mpssas_softc *sassc, struct mps_command *cm,
 				 * If not, translate the virtual LBA to a
 				 * physical LBA and set the DevHandle for the
 				 * PhysDisk to be used.  If it does cross a
-				 * boundry, do normal I/O.  To get the right
+				 * boundary, do normal I/O.  To get the right
 				 * DevHandle to use, get the map number for the
 				 * column, then use that map number to look up
 				 * the DevHandle of the PhysDisk.
diff --git a/sys/dev/mps/mps_sas_lsi.c b/sys/dev/mps/mps_sas_lsi.c
index 268383ada440..e9fa06bc0574 100644
--- a/sys/dev/mps/mps_sas_lsi.c
+++ b/sys/dev/mps/mps_sas_lsi.c
@@ -647,7 +647,7 @@ mpssas_add_device(struct mps_softc *sc, u16 handle, u8 linkrate){
 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
 		}
 	}
-	/* TODO Check proper endianess */
+	/* TODO Check proper endianness */
 	sas_address = config_page.SASAddress.High;
 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
 
diff --git a/sys/dev/mpt/mpilib/mpi_cnfg.h b/sys/dev/mpt/mpilib/mpi_cnfg.h
index e763c587c739..cb70d88a0aec 100644
--- a/sys/dev/mpt/mpilib/mpi_cnfg.h
+++ b/sys/dev/mpt/mpilib/mpi_cnfg.h
@@ -339,7 +339,7 @@
  *                      define.
  *                      Added BIOS Page 4 structure.
  *                      Added MPI_RAID_PHYS_DISK1_PATH_MAX define for RAID
- *                      Physcial Disk Page 1.
+ *                      Physical Disk Page 1.
  *  01-15-07  01.05.17  Added additional bit defines for ExtFlags field of
  *                      Manufacturing Page 4.
  *                      Added Solid State Drives Supported bit to IOC Page 6
diff --git a/sys/dev/mpt/mpilib/mpi_log_fc.h b/sys/dev/mpt/mpilib/mpi_log_fc.h
index 4f8d6f6f8fc1..0383f662252d 100644
--- a/sys/dev/mpt/mpilib/mpi_log_fc.h
+++ b/sys/dev/mpt/mpilib/mpi_log_fc.h
@@ -66,8 +66,8 @@ typedef enum _MpiIocLogInfoFc
 {
     MPI_IOCLOGINFO_FC_INIT_BASE                     = 0x20000000,
     MPI_IOCLOGINFO_FC_INIT_ERROR_OUT_OF_ORDER_FRAME = 0x20000001, /* received an out of order frame - unsupported */
-    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_START_OF_FRAME = 0x20000002, /* Bad Rx Frame, bad start of frame primative */
-    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_END_OF_FRAME   = 0x20000003, /* Bad Rx Frame, bad end of frame primative */
+    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_START_OF_FRAME = 0x20000002, /* Bad Rx Frame, bad start of frame primitive */
+    MPI_IOCLOGINFO_FC_INIT_ERROR_BAD_END_OF_FRAME   = 0x20000003, /* Bad Rx Frame, bad end of frame primitive */
     MPI_IOCLOGINFO_FC_INIT_ERROR_OVER_RUN           = 0x20000004, /* Bad Rx Frame, overrun */
     MPI_IOCLOGINFO_FC_INIT_ERROR_RX_OTHER           = 0x20000005, /* Other errors caught by IOC which require retries */
     MPI_IOCLOGINFO_FC_INIT_ERROR_SUBPROC_DEAD       = 0x20000006, /* Main processor could not initialize sub-processor */
diff --git a/sys/dev/mpt/mpilib/mpi_log_sas.h b/sys/dev/mpt/mpilib/mpi_log_sas.h
index 3afd0bb4fe3e..caebcb18fe60 100644
--- a/sys/dev/mpt/mpilib/mpi_log_sas.h
+++ b/sys/dev/mpt/mpilib/mpi_log_sas.h
@@ -86,9 +86,9 @@
 #define IOP_LOGINFO_CODE_FWUPLOAD_NO_FLASH_AVAILABLE         (0x0003E000) /* Tried to upload from flash, but there is none */
 #define IOP_LOGINFO_CODE_FWUPLOAD_UNKNOWN_IMAGE_TYPE         (0x0003E001) /* ImageType field contents were invalid */
 #define IOP_LOGINFO_CODE_FWUPLOAD_WRONG_IMAGE_SIZE           (0x0003E002) /* ImageSize field in TCSGE was bad/offset in MfgPg 4 was wrong */
-#define IOP_LOGINFO_CODE_FWUPLOAD_ENTIRE_FLASH_UPLOAD_FAILED (0x0003E003) /* Error occured while attempting to upload the entire flash */
-#define IOP_LOGINFO_CODE_FWUPLOAD_REGION_UPLOAD_FAILED       (0x0003E004) /* Error occured while attempting to upload single flash region */
-#define IOP_LOGINFO_CODE_FWUPLOAD_DMA_FAILURE                (0x0003E005) /* Problem occured while DMAing FW to host memory */
+#define	IOP_LOGINFO_CODE_FWUPLOAD_ENTIRE_FLASH_UPLOAD_FAILED (0x0003E003) /* Error occurred while attempting to upload the entire flash */
+#define	IOP_LOGINFO_CODE_FWUPLOAD_REGION_UPLOAD_FAILED       (0x0003E004) /* Error occurred while attempting to upload single flash region */
+#define	IOP_LOGINFO_CODE_FWUPLOAD_DMA_FAILURE                (0x0003E005) /* Problem occurred while DMAing FW to host memory */
 
 #define IOP_LOGINFO_CODE_DIAG_MSG_ERROR                      (0x00040000) /* Error handling diag msg - or'd with diag status */
 
@@ -215,8 +215,8 @@
 #define PL_LOGINFO_SUB_CODE_BREAK_ON_INCOMPLETE_BREAK_RCVD   (0x00005000)
 
 #define PL_LOGINFO_CODE_ENCL_MGMT_SMP_FRAME_FAILURE          (0x00200000) /* Can't get SMP Frame */
-#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_READ_ERROR             (0x00200010) /* Error occured on SMP Read */
-#define PL_LOGINFO_CODE_ENCL_MGMT_SMP_WRITE_ERROR            (0x00200020) /* Error occured on SMP Write */
+#define	PL_LOGINFO_CODE_ENCL_MGMT_SMP_READ_ERROR             (0x00200010) /* Error occurred on SMP Read */
+#define	PL_LOGINFO_CODE_ENCL_MGMT_SMP_WRITE_ERROR            (0x00200020) /* Error occurred on SMP Write */
 #define PL_LOGINFO_CODE_ENCL_MGMT_NOT_SUPPORTED_ON_ENCL      (0x00200040) /* Encl Mgmt services not available for this WWID */
 #define PL_LOGINFO_CODE_ENCL_MGMT_ADDR_MODE_NOT_SUPPORTED    (0x00200050) /* Address Mode not suppored */
 #define PL_LOGINFO_CODE_ENCL_MGMT_BAD_SLOT_NUM               (0x00200060) /* Invalid Slot Number in SEP Msg */
@@ -235,8 +235,8 @@
 #define PL_LOGINFO_DA_SEP_RECEIVED_NACK_FROM_SLAVE           (0x00200103) /* SEP NACK'd, it is busy */
 #define PL_LOGINFO_DA_SEP_DID_NOT_RECEIVE_ACK                (0x00200104) /* SEP didn't rcv. ACK (Last Rcvd Bit = 1) */
 #define PL_LOGINFO_DA_SEP_BAD_STATUS_HDR_CHKSUM              (0x00200105) /* SEP stopped or sent bad chksum in Hdr */
-#define PL_LOGINFO_DA_SEP_STOP_ON_DATA                       (0x00200106) /* SEP stopped while transfering data */
-#define PL_LOGINFO_DA_SEP_STOP_ON_SENSE_DATA                 (0x00200107) /* SEP stopped while transfering sense data */
+#define	PL_LOGINFO_DA_SEP_STOP_ON_DATA                       (0x00200106) /* SEP stopped while transferring data */
+#define	PL_LOGINFO_DA_SEP_STOP_ON_SENSE_DATA                 (0x00200107) /* SEP stopped while transferring sense data */
 #define PL_LOGINFO_DA_SEP_UNSUPPORTED_SCSI_STATUS_1          (0x00200108) /* SEP returned unknown scsi status */
 #define PL_LOGINFO_DA_SEP_UNSUPPORTED_SCSI_STATUS_2          (0x00200109) /* SEP returned unknown scsi status */
 #define PL_LOGINFO_DA_SEP_CHKSUM_ERROR_AFTER_STOP            (0x0020010A) /* SEP returned bad chksum after STOP */
diff --git a/sys/dev/mpt/mpt.c b/sys/dev/mpt/mpt.c
index 93179652f3b3..a3fa58e7d3a5 100644
--- a/sys/dev/mpt/mpt.c
+++ b/sys/dev/mpt/mpt.c
@@ -964,7 +964,7 @@ mpt_wait_state(struct mpt_softc *mpt, enum DB_STATE_BITS state)
 }
 
 
-/************************* Intialization/Configuration ************************/
+/************************* Initialization/Configuration ************************/
 static int mpt_download_fw(struct mpt_softc *mpt);
 
 /* Issue the reset COMMAND to the IOC */
diff --git a/sys/dev/mpt/mpt.h b/sys/dev/mpt/mpt.h
index 57dbe7b36346..b611d0637c95 100644
--- a/sys/dev/mpt/mpt.h
+++ b/sys/dev/mpt/mpt.h
@@ -237,7 +237,7 @@ struct mpt_map_info {
 
 void mpt_map_rquest(void *, bus_dma_segment_t *, int, int);
 
-/********************************** Endianess *********************************/
+/********************************* Endianness *********************************/
 #define	MPT_2_HOST64(ptr, tag)	ptr->tag = le64toh(ptr->tag)
 #define	MPT_2_HOST32(ptr, tag)	ptr->tag = le32toh(ptr->tag)
 #define	MPT_2_HOST16(ptr, tag)	ptr->tag = le16toh(ptr->tag)
@@ -663,8 +663,8 @@ struct mpt_softc {
 	bus_addr_t		reply_phys;	/* BusAddr of reply memory */
 
 	bus_dma_tag_t		buffer_dmat;	/* DMA tag for buffers */
-	bus_dma_tag_t		request_dmat;	/* DMA tag for request memroy */
-	bus_dmamap_t		request_dmap;	/* DMA map for request memroy */
+	bus_dma_tag_t		request_dmat;	/* DMA tag for request memory */
+	bus_dmamap_t		request_dmap;	/* DMA map for request memory */
 	uint8_t		       *request;	/* KVA of Request memory */
 	bus_addr_t		request_phys;	/* BusAddr of request memory */
 
diff --git a/sys/dev/mrsas/mrsas.c b/sys/dev/mrsas/mrsas.c
index 7d5f7fb1cf4c..23682a9cc127 100644
--- a/sys/dev/mrsas/mrsas.c
+++ b/sys/dev/mrsas/mrsas.c
@@ -1069,7 +1069,7 @@ mrsas_free_mem(struct mrsas_softc *sc)
 	}
 
 	/*
-	 * Free version buffer memroy
+	 * Free version buffer memory
 	 */
 	if (sc->verbuf_phys_addr)
 		bus_dmamap_unload(sc->verbuf_tag, sc->verbuf_dmamap);
@@ -2687,7 +2687,7 @@ mrsas_reset_reply_desc(struct mrsas_softc *sc)
  * command Controller is in working state, so skip OCR. Otherwise, do
  * OCR/kill Adapter based on flag disableOnlineCtrlReset. 4. Start of the
  * OCR, return all SCSI command back to CAM layer which has ccb_ptr. 5. Post
- * OCR, Re-fire Managment command and move Controller to Operation state.
+ * OCR, Re-fire Management command and move Controller to Operation state.
  */
 int
 mrsas_reset_ctrl(struct mrsas_softc *sc)
diff --git a/sys/dev/mrsas/mrsas_cam.c b/sys/dev/mrsas/mrsas_cam.c
index 08f90025ab57..d6d4ad5dd926 100644
--- a/sys/dev/mrsas/mrsas_cam.c
+++ b/sys/dev/mrsas/mrsas_cam.c
@@ -362,7 +362,7 @@ mrsas_action(struct cam_sim *sim, union ccb *ccb)
  *
  * This function will execute after timeout value provided by ccb header from
  * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO
- * comming from CAM layer. This function is callback function for IO timeout
+ * coming from CAM layer. This function is callback function for IO timeout
  * and it runs in no-sleep context. Set do_timedout_reset in Adapter context
  * so that it will execute OCR/Kill adpter from ocr_thread context.
  */
diff --git a/sys/dev/msk/if_msk.c b/sys/dev/msk/if_msk.c
index ffbe36eb423a..458d7fdeb43c 100644
--- a/sys/dev/msk/if_msk.c
+++ b/sys/dev/msk/if_msk.c
@@ -3493,7 +3493,7 @@ msk_intr_hwerr(struct msk_softc *sc)
 		CSR_WRITE_1(sc, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
 	if ((status & Y2_IS_PCI_NEXP) != 0) {
 		/*
-		 * PCI Express Error occured which is not described in PEX
+		 * PCI Express Error occurred which is not described in PEX
 		 * spec.
 		 * This error is also mapped either to Master Abort(
 		 * Y2_IS_MST_ERR) or Target Abort (Y2_IS_IRQ_STAT) bit and
diff --git a/sys/dev/msk/if_mskreg.h b/sys/dev/msk/if_mskreg.h
index da69f2e8eb58..8f2ea634b50d 100644
--- a/sys/dev/msk/if_mskreg.h
+++ b/sys/dev/msk/if_mskreg.h
@@ -1309,7 +1309,7 @@
 #define PHY_ST_EXT_ST	(1<<8)	/* Bit  8:	Extended Status Present */
 #define PHY_ST_PRE_SUP	(1<<6)	/* Bit  6:	Preamble Suppression */
 #define PHY_ST_AN_OVER	(1<<5)	/* Bit  5:	Auto-Negotiation Over */
-#define PHY_ST_REM_FLT	(1<<4)	/* Bit  4:	Remote Fault Condition Occured */
+#define	PHY_ST_REM_FLT	(1<<4)	/* Bit  4:	Remote Fault Condition Occurred */
 #define PHY_ST_AN_CAP	(1<<3)	/* Bit  3:	Auto-Negotiation Capability */
 #define PHY_ST_LSYNC	(1<<2)	/* Bit  2:	Link Synchronized */
 #define PHY_ST_JAB_DET	(1<<1)	/* Bit  1:	Jabber Detected */
@@ -1813,8 +1813,8 @@
 #define GM_GPSR_LINK_UP		BIT_12	/* Link Up Status */
 #define GM_GPSR_PAUSE		BIT_11	/* Pause State */
 #define GM_GPSR_TX_ACTIVE	BIT_10	/* Tx in Progress */
-#define GM_GPSR_EXC_COL		BIT_9	/* Excessive Collisions Occured */
-#define GM_GPSR_LAT_COL		BIT_8	/* Late Collisions Occured */
+#define	GM_GPSR_EXC_COL		BIT_9	/* Excessive Collisions Occurred */
+#define	GM_GPSR_LAT_COL		BIT_8	/* Late Collisions Occurred */
 #define GM_GPSR_PHY_ST_CH	BIT_5	/* PHY Status Change */
 #define GM_GPSR_GIG_SPEED	BIT_4	/* Gigabit Speed (1 = 1000 Mbps) */
 #define GM_GPSR_PART_MODE	BIT_3	/* Partition mode */
diff --git a/sys/dev/mvs/mvs.c b/sys/dev/mvs/mvs.c
index 699c22f3d097..b3ff4d103843 100644
--- a/sys/dev/mvs/mvs.c
+++ b/sys/dev/mvs/mvs.c
@@ -475,7 +475,7 @@ mvs_setup_edma_queues(device_t dev)
 	ATA_OUTL(ch->r_mem, EDMA_REQQOP, work & 0xffffffff);
 	bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map,
 	    BUS_DMASYNC_PREWRITE);
-	/* Reponses queue. */
+	/* Responses queue. */
 	memset(ch->dma.workrp, 0xff, MVS_WORKRP_SIZE);
 	work = ch->dma.workrp_bus;
 	ATA_OUTL(ch->r_mem, EDMA_RESQBAH, work >> 32);
@@ -1042,7 +1042,7 @@ mvs_crbq_intr(device_t dev)
 		slot = le16toh(crpb->id) & MVS_CRPB_TAG_MASK;
 		flags = le16toh(crpb->rspflg);
 		/*
-		 * Handle only successfull completions here.
+		 * Handle only successful completions here.
 		 * Errors will be handled by main intr handler.
 		 */
 #if defined(__i386__) || defined(__amd64__)
diff --git a/sys/dev/mvs/mvs.h b/sys/dev/mvs/mvs.h
index 163af50e70dc..51f1d51fc820 100644
--- a/sys/dev/mvs/mvs.h
+++ b/sys/dev/mvs/mvs.h
@@ -566,7 +566,7 @@ struct mvs_channel {
 	int			numtslotspd[16];/* Number of NCQ slots per dev */
 	int			numhslots;	/* Number of held slots */
 	int			recoverycmd;	/* Our READ LOG active */
-	int			fatalerr;	/* Fatal error happend */
+	int			fatalerr;	/* Fatal error happened */
 	int			lastslot;	/* Last used slot */
 	int			taggedtarget;	/* Last tagged target */
 	int			resetting;	/* Hard-reset in progress. */
diff --git a/sys/dev/mwl/if_mwl.c b/sys/dev/mwl/if_mwl.c
index 161af743aafd..100d7b528dbe 100644
--- a/sys/dev/mwl/if_mwl.c
+++ b/sys/dev/mwl/if_mwl.c
@@ -4665,7 +4665,7 @@ mwl_txq_dump(&sc->sc_txq[0]);/*XXX*/
  * Diagnostic interface to the HAL.  This is used by various
  * tools to do things like retrieve register contents for
  * debugging.  The mechanism is intentionally opaque so that
- * it can change frequently w/o concern for compatiblity.
+ * it can change frequently w/o concern for compatibility.
  */
 static int
 mwl_ioctl_diag(struct mwl_softc *sc, struct mwl_diag *md)
diff --git a/sys/dev/mwl/if_mwlvar.h b/sys/dev/mwl/if_mwlvar.h
index 2792b9c9db99..e5feda994ba9 100644
--- a/sys/dev/mwl/if_mwlvar.h
+++ b/sys/dev/mwl/if_mwlvar.h
@@ -65,7 +65,7 @@
 #define	MWL_TXDESC	1		/* max tx descriptors/segments */
 #endif
 #ifndef MWL_AGGR_SIZE
-#define MWL_AGGR_SIZE	3839		/* max tx agregation size */
+#define	MWL_AGGR_SIZE	3839		/* max tx aggregation size */
 #endif
 #define	MWL_AGEINTERVAL	1		/* poke f/w every sec to age q's */ 
 #define	MWL_MAXSTAID	64		/* max of 64 stations */
diff --git a/sys/dev/nand/nfc_fsl.c b/sys/dev/nand/nfc_fsl.c
index 414c009a8f3d..8c3ca06951a7 100644
--- a/sys/dev/nand/nfc_fsl.c
+++ b/sys/dev/nand/nfc_fsl.c
@@ -515,7 +515,7 @@ fsl_nfc_start_command(device_t dev)
 	if (fcm->status)
 		sc->fcm.reg_mdr = LBC_READ(MDR);
 
-	/* Even if timeout occured, we should perform steps below */
+	/* Even if timeout occurred, we should perform steps below */
 	LBC_WRITE(LTESR, ltesr_v);
 	LBC_WRITE(LTEATR, 0);
 
diff --git a/sys/dev/ncr/ncr.c b/sys/dev/ncr/ncr.c
index 8f02ef02a865..6f52f0f8f326 100644
--- a/sys/dev/ncr/ncr.c
+++ b/sys/dev/ncr/ncr.c
@@ -737,7 +737,7 @@ struct head {
 **
 **	The last four bytes are used inside the script by "COPY" commands.
 **	Because source and destination must have the same alignment
-**	in a longword, the fields HAVE to be at the choosen offsets.
+**	in a longword, the fields HAVE to be at the chosen offsets.
 **		xerr_st	(4)	0	(0x34)	scratcha
 **		sync_st	(5)	1	(0x05)	sxfer
 **		wide_st	(7)	3	(0x03)	scntl3
@@ -1698,7 +1698,7 @@ static	struct script script0 = {
 
 }/*-------------------------< NO_DATA >--------------------*/,{
 	/*
-	**	The target wants to tranfer too much data
+	**	The target wants to transfer too much data
 	**	or in the wrong direction.
 	**      Remember that in extended error.
 	*/
@@ -3642,7 +3642,7 @@ ncr_attach (device_t dev)
 		(np->rv_ctest5 & DFS) ? "large" : "normal");
 
 	/*
-	**	Print some complementary information that can be helpfull.
+	**	Print some complementary information that can be helpful.
 	*/
 	if (bootverbose)
 		device_printf(dev, "%s, %s IRQ driver%s\n",
@@ -5622,7 +5622,7 @@ static void ncr_int_ma (ncb_p np, u_char dstat)
 
 
 	/*
-	**	The data in the dma fifo has not been transfered to
+	**	The data in the dma fifo has not been transferred to
 	**	the target -> add the amount to the rest
 	**	and clear the data.
 	**	Check the sstat2 register in case of wide transfer.
@@ -5921,7 +5921,7 @@ static void ncr_int_sir (ncb_p np)
 **	Was Sie schon immer ueber transfermode negotiation wissen wollten ...
 **
 **	We try to negotiate sync and wide transfer only after
-**	a successfull inquire command. We look at byte 7 of the
+**	a successful inquire command. We look at byte 7 of the
 **	inquire data to determine the capabilities if the target.
 **
 **	When we try to negotiate, we append the negotiation message
@@ -5929,7 +5929,7 @@ static void ncr_int_sir (ncb_p np)
 **	The host status field is set to HS_NEGOTIATE to mark this
 **	situation.
 **
-**	If the target doesn't answer this message immidiately
+**	If the target doesn't answer this message immediately
 **	(as required by the standard), the SIR_NEGO_FAIL interrupt
 **	will be raised eventually.
 **	The handler removes the HS_NEGOTIATE status, and sets the
@@ -6356,7 +6356,7 @@ out:
 /*==========================================================
 **
 **
-**	Aquire a control block
+**	Acquire a control block
 **
 **
 **==========================================================
diff --git a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c b/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c
index 2f864ab2e2c8..565a5f608c0e 100644
--- a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c
+++ b/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c
@@ -355,7 +355,7 @@ nf10bmac_rx_locked(struct nf10bmac_softc *sc)
 	/*
 	 * General problem here in case we need to sync ourselves to the
 	 * beginning of a packet.  Length will only be set for the first
-	 * read, and together with strb we can detect the begining (or
+	 * read, and together with strb we can detect the beginning (or
 	 * skip to tlast).
 	 */
 
diff --git a/sys/dev/netmap/netmap.c b/sys/dev/netmap/netmap.c
index f1b8610f86b2..ee38452cbf8c 100644
--- a/sys/dev/netmap/netmap.c
+++ b/sys/dev/netmap/netmap.c
@@ -186,7 +186,7 @@ ports attached to the switch)
  * 	      This is a persistent or ephemeral VALE port. Ephemeral ports
  * 	      are created on the fly if they don't already exist, and are
  * 	      always attached to a bridge.
- * 	      Persistent VALE ports must must be created seperately, and i
+ * 	      Persistent VALE ports must must be created separately, and i
  * 	      then attached like normal NICs. The NIOCREGIF we are examining
  * 	      will find them only if they had previosly been created and
  * 	      attached (see VALE_CTL below).
@@ -1378,7 +1378,7 @@ netmap_get_na(struct nmreq *nmr, struct netmap_adapter **na, int create)
 
 	NMG_LOCK_ASSERT();
 
-	/* we cascade through all possibile types of netmap adapter.
+	/* we cascade through all possible types of netmap adapter.
 	 * All netmap_get_*_na() functions return an error and an na,
 	 * with the following combinations:
 	 *
@@ -1912,7 +1912,7 @@ netmap_rel_exclusive(struct netmap_priv_d *priv)
  *
  *	* netmap_pipe_reg				(pipes)
  *		inform the other pipe end that it is no
- *		longer responsibile for the lifetime of this
+ *		longer responsible for the lifetime of this
  *		pipe end
  *
  *	* netmap_monitor_reg				(monitors)
diff --git a/sys/dev/netmap/netmap_generic.c b/sys/dev/netmap/netmap_generic.c
index 9129960e6b3e..85a6a9f76ea2 100644
--- a/sys/dev/netmap/netmap_generic.c
+++ b/sys/dev/netmap/netmap_generic.c
@@ -332,7 +332,7 @@ generic_netmap_register(struct netmap_adapter *na, int enable)
 
 	} else if (na->tx_rings[0].tx_pool) {
 		/* Disable netmap mode. We enter here only if the previous
-		   generic_netmap_register(na, 1) was successfull.
+		   generic_netmap_register(na, 1) was successful.
 		   If it was not, na->tx_rings[0].tx_pool was set to NULL by the
 		   error handling code below. */
 		rtnl_lock();
diff --git a/sys/dev/netmap/netmap_offloadings.c b/sys/dev/netmap/netmap_offloadings.c
index 4055c427cb56..dadc1dcbc14c 100644
--- a/sys/dev/netmap/netmap_offloadings.c
+++ b/sys/dev/netmap/netmap_offloadings.c
@@ -171,7 +171,7 @@ void bdg_mismatch_datapath(struct netmap_vp_adapter *na,
 	 *    - 12: the first 10 bytes correspond to the struct
 	 *          virtio_net_hdr, and the last 2 bytes store the
 	 *          "mergeable buffers" info, which is an optional
-	 *	    hint that can be zeroed for compability
+	 *	    hint that can be zeroed for compatibility
 	 *
 	 * The destination header is therefore built according to the
 	 * following table:
diff --git a/sys/dev/nge/if_nge.c b/sys/dev/nge/if_nge.c
index 2d92bc31582c..2bd49e1e2799 100644
--- a/sys/dev/nge/if_nge.c
+++ b/sys/dev/nge/if_nge.c
@@ -2109,7 +2109,7 @@ nge_init_locked(struct nge_softc *sc)
 	CSR_WRITE_4(sc, NGE_PRIOQCTL, 0);
 
 	/*
-	 * Set pause frames paramters.
+	 * Set pause frames parameters.
 	 *  Rx stat FIFO hi-threshold : 2 or more packets
 	 *  Rx stat FIFO lo-threshold : less than 2 packets
 	 *  Rx data FIFO hi-threshold : 2K or more bytes
diff --git a/sys/dev/nsp/nsp.c b/sys/dev/nsp/nsp.c
index 5cda44e5328f..c86bcdb3e1a8 100644
--- a/sys/dev/nsp/nsp.c
+++ b/sys/dev/nsp/nsp.c
@@ -1069,7 +1069,7 @@ WriteLoop:
 				 * (not scsi bus!), we should check
 				 * the scsi device sends us request
 				 * signals, which means the scsi device
-				 * is ready to recieve data without
+				 * is ready to receive data without
 				 * heavy delays. 
 				 */
 				if ((slp->sl_scp.scp_datalen % suspendio) == 0)
diff --git a/sys/dev/ntb/ntb_hw/ntb_hw.c b/sys/dev/ntb/ntb_hw/ntb_hw.c
index cb8f27cd46ec..c1949f7c918b 100644
--- a/sys/dev/ntb/ntb_hw/ntb_hw.c
+++ b/sys/dev/ntb/ntb_hw/ntb_hw.c
@@ -57,7 +57,7 @@ __FBSDID("$FreeBSD$");
  * allows you to connect two systems using a PCI-e link.
  *
  * This module contains the hardware abstraction layer for the NTB. It allows
- * you to send and recieve interrupts, map the memory windows and send and
+ * you to send and receive interrupts, map the memory windows and send and
  * receive messages in the scratch-pad registers.
  *
  * NOTE: Much of the code in this module is shared with Linux. Any patches may
@@ -3192,7 +3192,7 @@ ntb_peer_db_set(struct ntb_softc *ntb, uint64_t bit)
  * ring to its memory window write.
  *
  * Note that writing the peer doorbell via a memory window will *not* generate
- * an interrupt on the remote host; that must be done seperately.
+ * an interrupt on the remote host; that must be done separately.
  */
 bus_addr_t
 ntb_get_peer_db_addr(struct ntb_softc *ntb, vm_size_t *sz_out)
diff --git a/sys/dev/patm/if_patmvar.h b/sys/dev/patm/if_patmvar.h
index e934784aec09..c87787a6afcf 100644
--- a/sys/dev/patm/if_patmvar.h
+++ b/sys/dev/patm/if_patmvar.h
@@ -256,7 +256,7 @@ struct patm_softc {
 	struct callout		tst_callout;
 	u_int			tst_free;	/* free slots */
 	u_int			tst_reserve;	/* non-CBR reserve */
-	u_int			bwrem;		/* remaining bandwith */
+	u_int			bwrem;		/* remaining bandwidth */
 
 	/* sysctl support */
 	struct sysctl_ctx_list	sysctl_ctx;
diff --git a/sys/dev/pccbb/pccbb.c b/sys/dev/pccbb/pccbb.c
index c3a30fa2c5db..f120219a82ff 100644
--- a/sys/dev/pccbb/pccbb.c
+++ b/sys/dev/pccbb/pccbb.c
@@ -722,7 +722,7 @@ cbb_o2micro_power_hack(struct cbb_softc *sc)
 
 /*
  * Restore the damage that cbb_o2micro_power_hack does to EXCA_INTR so
- * we don't have an interrupt storm on power on.  This has the efect of
+ * we don't have an interrupt storm on power on.  This has the effect of
  * disabling card status change interrupts for the duration of poweron.
  */
 static void
diff --git a/sys/dev/pcf/pcf_isa.c b/sys/dev/pcf/pcf_isa.c
index 70c3efe8f707..ca63583879a5 100644
--- a/sys/dev/pcf/pcf_isa.c
+++ b/sys/dev/pcf/pcf_isa.c
@@ -112,7 +112,7 @@ pcf_isa_probe(device_t dev)
 	if ((error = resource_int_value(PCF_NAME, 0, "port", &port) != 0))
 		return (error);
 
-	/* Probe is only successfull for the specified base io */
+	/* Probe is only successful for the specified base io */
 	if (port != (u_int)start)
 		return (ENXIO);
 
diff --git a/sys/dev/pci/hostb_pci.c b/sys/dev/pci/hostb_pci.c
index 84878caf900d..79664c62ac94 100644
--- a/sys/dev/pci/hostb_pci.c
+++ b/sys/dev/pci/hostb_pci.c
@@ -51,7 +51,7 @@ pci_hostb_probe(device_t dev)
 
 	switch (id) {
 
-	/* VIA VT82C596 Power Managment Function */
+	/* VIA VT82C596 Power Management Function */
 	case 0x30501106:
 		return (ENXIO);
 
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index a7749b2858bd..630aaa949780 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -333,7 +333,7 @@ SYSCTL_INT(_hw_pci, OID_AUTO, do_power_nodriver, CTLFLAG_RWTUN,
     &pci_do_power_nodriver, 0,
   "Place a function into D3 state when no driver attaches to it.  0 means\n\
 disable.  1 means conservatively place devices into D3 state.  2 means\n\
-agressively place devices into D3 state.  3 means put absolutely everything\n\
+aggressively place devices into D3 state.  3 means put absolutely everything\n\
 in D3 state.");
 
 int pci_do_power_resume = 1;
@@ -4128,7 +4128,7 @@ pci_attach(device_t dev)
 		return (error);
 
 	/*
-	 * Since there can be multiple independantly numbered PCI
+	 * Since there can be multiple independently numbered PCI
 	 * busses on systems with multiple PCI domains, we can't use
 	 * the unit number to decide which bus we are probing. We ask
 	 * the parent pcib what our domain and bus numbers are.
@@ -5774,7 +5774,7 @@ pci_cfg_save(device_t dev, struct pci_devinfo *dinfo, int setstate)
 			if (cls == PCIC_STORAGE)
 				return;
 			/*FALLTHROUGH*/
-		case 2:		/* Agressive about what to power down */
+		case 2:		/* Aggressive about what to power down */
 			if (cls == PCIC_DISPLAY || cls == PCIC_MEMORY ||
 			    cls == PCIC_BASEPERIPH)
 				return;
diff --git a/sys/dev/pdq/pdq.c b/sys/dev/pdq/pdq.c
index 4fb98db2d090..00add2cbc2ff 100644
--- a/sys/dev/pdq/pdq.c
+++ b/sys/dev/pdq/pdq.c
@@ -63,7 +63,7 @@ __FBSDID("$FreeBSD$");
 static const char * const pdq_halt_codes[] = {
     "Selftest Timeout", "Host Bus Parity Error", "Host Directed Fault",
     "Software Fault", "Hardware Fault", "PC Trace Path Test",
-    "DMA Error", "Image CRC Error", "Adapter Processer Error"
+    "DMA Error", "Image CRC Error", "Adapter Processor Error"
 };
 
 static const char * const pdq_adapter_states[] = {
diff --git a/sys/dev/ppbus/lpt.c b/sys/dev/ppbus/lpt.c
index 3a28efd20934..ce08ccc605c2 100644
--- a/sys/dev/ppbus/lpt.c
+++ b/sys/dev/ppbus/lpt.c
@@ -113,7 +113,7 @@ struct lpt_data {
 	   prime once */
 	u_char	sc_control;
 	char	sc_flags;
-#define	LP_POS_INIT	0x04	/* if we are a postive init signal */
+#define	LP_POS_INIT	0x04	/* if we are a positive init signal */
 #define	LP_POS_ACK	0x08	/* if we are a positive going ack */
 #define	LP_NO_PRIME	0x10	/* don't prime the printer at all */
 #define	LP_PRIMEOPEN	0x20	/* prime on every open */
diff --git a/sys/dev/ppbus/ppb_1284.c b/sys/dev/ppbus/ppb_1284.c
index e909e8e0f6cd..31f38ce5f557 100644
--- a/sys/dev/ppbus/ppb_1284.c
+++ b/sys/dev/ppbus/ppb_1284.c
@@ -103,14 +103,14 @@ ppb_1284_get_state(device_t bus)
 /*
  * ppb_1284_set_state()
  *
- * Change IEEE1284 state if no error occured
+ * Change IEEE1284 state if no error occurred
  */
 int
 ppb_1284_set_state(device_t bus, int state)
 {
 	struct ppb_data *ppb = DEVTOSOFTC(bus);
 
-	/* call ppb_1284_reset_error() if you absolutly want to change
+	/* call ppb_1284_reset_error() if you absolutely want to change
 	 * the state from PPB_ERROR to another */
 	mtx_assert(ppb->ppc_lock, MA_OWNED);
 	if ((ppb->state != PPB_ERROR) &&
@@ -191,7 +191,7 @@ ppb_request_mode(int mode, int options)
 /*
  * ppb_peripheral_negociate()
  *
- * Negociate the peripheral side
+ * Negotiate the peripheral side
  */
 int
 ppb_peripheral_negociate(device_t bus, int mode, int options)
@@ -249,7 +249,7 @@ ppb_peripheral_negociate(device_t bus, int mode, int options)
 #ifdef DEBUG_1284
 			printf("A");
 #endif
-			/* negociation succeeds */
+			/* negotiation succeeds */
 		}
 	} else {
 		/* Event 5 - mode not supported */
@@ -648,11 +648,11 @@ ppb_1284_read(device_t bus, int mode, char *buffer,
 /*
  * ppb_1284_negociate()
  *
- * IEEE1284 negociation phase
+ * IEEE1284 negotiation phase
  *
  * Normal nibble mode or request device id mode (see ppb_1284.h)
  *
- * After negociation, nFAULT is low if data is available
+ * After negotiation, nFAULT is low if data is available
  */
 int
 ppb_1284_negociate(device_t bus, int mode, int options)
@@ -677,7 +677,7 @@ ppb_1284_negociate(device_t bus, int mode, int options)
 	/* ensure the host is in compatible mode */
 	ppb_set_mode(bus, PPB_COMPATIBLE);
 
-	/* reset error to catch the actual negociation error */
+	/* reset error to catch the actual negotiation error */
 	ppb_1284_reset_error(bus, PPB_FORWARD_IDLE);
 
 	/* calculate ext. value */
@@ -687,7 +687,7 @@ ppb_1284_negociate(device_t bus, int mode, int options)
 	ppb_wctr(bus, (nINIT | SELECTIN) & ~(STROBE | AUTOFEED));
 	DELAY(1);
 
-	/* enter negociation phase */
+	/* enter negotiation phase */
 	ppb_1284_set_state(bus, PPB_NEGOCIATION);
 
 	/* Event 0 - put the exten. value on the data lines */
@@ -769,7 +769,7 @@ ppb_1284_negociate(device_t bus, int mode, int options)
 		ppb_1284_set_state(bus, PPB_REVERSE_IDLE);
 		break;
 	case PPB_ECP:
-		/* negociation ok, now setup the communication */
+		/* negotiation ok, now setup the communication */
 		ppb_1284_set_state(bus, PPB_SETUP);
 		ppb_wctr(bus, (nINIT | AUTOFEED) & ~(SELECTIN | STROBE));
 
@@ -825,7 +825,7 @@ ppb_1284_terminate(device_t bus)
 #endif
 
 	/* do not reset error here to keep the error that
-	 * may occured before the ppb_1284_terminate() call */
+	 * may occurred before the ppb_1284_terminate() call */
 	ppb_1284_set_state(bus, PPB_TERMINATION);
 
 #ifdef PERIPH_1284
diff --git a/sys/dev/ppbus/vpo.c b/sys/dev/ppbus/vpo.c
index f5082751bdcf..d9e7cb8e1e17 100644
--- a/sys/dev/ppbus/vpo.c
+++ b/sys/dev/ppbus/vpo.c
@@ -221,7 +221,7 @@ vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
 		return;
 	}
 
-	/* if a timeout occured, no sense */
+	/* if a timeout occurred, no sense */
 	if (vpo->vpo_error) {
 		if (vpo->vpo_error != VP0_ESELECT_TIMEOUT)
 			device_printf(vpo->vpo_dev, "VP0 error/timeout (%d)\n",
diff --git a/sys/dev/ppbus/vpoio.c b/sys/dev/ppbus/vpoio.c
index 62af8694d8a6..a989e8d10339 100644
--- a/sys/dev/ppbus/vpoio.c
+++ b/sys/dev/ppbus/vpoio.c
@@ -382,7 +382,7 @@ vpoio_detect(struct vpoio_data *vpo)
 		/* The interface must be at least PS/2 or NIBBLE capable.
 		 * There is no way to know if the ZIP will work with
 		 * PS/2 mode since PS/2 and SPP both use the same connect
-		 * sequence. One must supress PS/2 with boot flags if
+		 * sequence. One must suppress PS/2 with boot flags if
 		 * PS/2 mode fails (see ppc(4)).
 		 */
 		if (ppb_set_mode(ppbus, PPB_PS2) != -1) {
diff --git a/sys/dev/qlxgb/qla_def.h b/sys/dev/qlxgb/qla_def.h
index 534f00266419..77b678c7bc83 100644
--- a/sys/dev/qlxgb/qla_def.h
+++ b/sys/dev/qlxgb/qla_def.h
@@ -105,7 +105,7 @@ typedef struct qla_ivec qla_ivec_t;
 #define QLA_WATCHDOG_CALLOUT_TICKS	1
 
 /*
- * Adapter structure contains the hardware independant information of the
+ * Adapter structure contains the hardware independent information of the
  * pci function.
  */
 struct qla_host {
diff --git a/sys/dev/qlxgb/qla_hw.c b/sys/dev/qlxgb/qla_hw.c
index d71bb296c24a..cebe05aed81a 100644
--- a/sys/dev/qlxgb/qla_hw.c
+++ b/sys/dev/qlxgb/qla_hw.c
@@ -28,7 +28,7 @@
 /*
  * File: qla_hw.c
  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
- * Content: Contains Hardware dependant functions
+ * Content: Contains Hardware dependent functions
  */
 
 #include <sys/cdefs.h>
@@ -319,7 +319,7 @@ qla_init_cntxt_regions(qla_host_t *ha)
 
 	/*
 	 * Initialize the Transmit Context Request so that we don't need to
-	 * do it everytime we need to create a context
+	 * do it every time we need to create a context
 	 */
 	tx_cntxt_req = hw->tx_cntxt_req;
 
@@ -636,7 +636,7 @@ qla_config_mac_addr(qla_host_t *ha, uint8_t *mac_addr, uint16_t cntxt_id,
 
 /*
  * Name: qla_set_mac_rcv_mode
- * Function: Enable/Disable AllMulticast and Promiscous Modes.
+ * Function: Enable/Disable AllMulticast and Promiscuous Modes.
  */
 static int
 qla_set_mac_rcv_mode(qla_host_t *ha, uint16_t cntxt_id, uint32_t mode)
diff --git a/sys/dev/qlxgb/qla_isr.c b/sys/dev/qlxgb/qla_isr.c
index 983fc12fb92a..d9670fb3f8f0 100644
--- a/sys/dev/qlxgb/qla_isr.c
+++ b/sys/dev/qlxgb/qla_isr.c
@@ -138,7 +138,7 @@ qla_rx_intr(qla_host_t *ha, uint64_t data, uint32_t sds_idx,
 	}
 
 	if (lro->lro_cnt && (tcp_lro_rx(lro, mp, 0) == 0)) {
-		/* LRO packet has been successfuly queued */
+		/* LRO packet has been successfully queued */
 	} else {
 		(*ifp->if_input)(ifp, mp);
 	}
diff --git a/sys/dev/qlxgbe/ql_def.h b/sys/dev/qlxgbe/ql_def.h
index b227f6740d69..968cc5b47a53 100644
--- a/sys/dev/qlxgbe/ql_def.h
+++ b/sys/dev/qlxgbe/ql_def.h
@@ -113,7 +113,7 @@ typedef struct _qla_tx_ring {
 } qla_tx_ring_t;
 
 /*
- * Adapter structure contains the hardware independant information of the
+ * Adapter structure contains the hardware independent information of the
  * pci function.
  */
 struct qla_host {
diff --git a/sys/dev/qlxgbe/ql_hw.c b/sys/dev/qlxgbe/ql_hw.c
index bbe774b4b759..996c4bbb33d7 100644
--- a/sys/dev/qlxgbe/ql_hw.c
+++ b/sys/dev/qlxgbe/ql_hw.c
@@ -28,7 +28,7 @@
 /*
  * File: ql_hw.c
  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
- * Content: Contains Hardware dependant functions
+ * Content: Contains Hardware dependent functions
  */
 
 #include <sys/cdefs.h>
@@ -1102,7 +1102,7 @@ qla_config_mac_addr(qla_host_t *ha, uint8_t *mac_addr, uint32_t add_mac)
 
 /*
  * Name: qla_set_mac_rcv_mode
- * Function: Enable/Disable AllMulticast and Promiscous Modes.
+ * Function: Enable/Disable AllMulticast and Promiscuous Modes.
  */
 static int
 qla_set_mac_rcv_mode(qla_host_t *ha, uint32_t mode)
diff --git a/sys/dev/qlxge/qls_def.h b/sys/dev/qlxge/qls_def.h
index b486beb29994..815946fafd5f 100644
--- a/sys/dev/qlxge/qls_def.h
+++ b/sys/dev/qlxge/qls_def.h
@@ -237,7 +237,7 @@ typedef struct _qla_mcast {
 #define QLA_PAGE_SIZE		4096
 
 /*
- * Adapter structure contains the hardware independant information of the
+ * Adapter structure contains the hardware independent information of the
  * pci function.
  */
 struct qla_host {
diff --git a/sys/dev/qlxge/qls_hw.c b/sys/dev/qlxge/qls_hw.c
index 181a7b0eb94a..b77d20e6f659 100644
--- a/sys/dev/qlxge/qls_hw.c
+++ b/sys/dev/qlxge/qls_hw.c
@@ -28,7 +28,7 @@
 /*
  * File: qls_hw.c
  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
- * Content: Contains Hardware dependant functions
+ * Content: Contains Hardware dependent functions
  */
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
@@ -353,7 +353,7 @@ qls_config_mcast_mac_addr_exit:
 
 /*
  * Name: qls_set_mac_rcv_mode
- * Function: Enable/Disable AllMulticast and Promiscous Modes.
+ * Function: Enable/Disable AllMulticast and Promiscuous Modes.
  */
 static int
 qls_wait_for_route_idx_ready(qla_host_t *ha, uint32_t op)
diff --git a/sys/dev/qlxge/qls_isr.c b/sys/dev/qlxge/qls_isr.c
index 4cca895f389f..1eb833eaa2c4 100644
--- a/sys/dev/qlxge/qls_isr.c
+++ b/sys/dev/qlxge/qls_isr.c
@@ -204,7 +204,7 @@ qls_rx_comp(qla_host_t *ha, uint32_t rxr_idx, uint32_t cq_idx, q81_rx_t *cq_e)
 			if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
 
 			if (lro->lro_cnt && (tcp_lro_rx(lro, mp, 0) == 0)) {
-				/* LRO packet has been successfuly queued */
+				/* LRO packet has been successfully queued */
 			} else {
 				(*ifp->if_input)(ifp, mp);
 			}
diff --git a/sys/dev/ral/rt2560.c b/sys/dev/ral/rt2560.c
index b8a92f4a875a..9e441e0b49db 100644
--- a/sys/dev/ral/rt2560.c
+++ b/sys/dev/ral/rt2560.c
@@ -780,7 +780,7 @@ rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 				return error;
 		}
 
-		/* turn assocation led on */
+		/* turn association led on */
 		rt2560_update_led(sc, 1, 0);
 
 		if (vap->iv_opmode != IEEE80211_M_MONITOR)
@@ -1096,7 +1096,7 @@ rt2560_decryption_intr(struct rt2560_softc *sc)
 	int hw, error;
 	int8_t rssi, nf;
 
-	/* retrieve last decriptor index processed by cipher engine */
+	/* retrieve last descriptor index processed by cipher engine */
 	hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
 	hw /= RT2560_RX_DESC_SIZE;
 
diff --git a/sys/dev/rc/rc.c b/sys/dev/rc/rc.c
index d600626ba9a6..24b851a99ae8 100644
--- a/sys/dev/rc/rc.c
+++ b/sys/dev/rc/rc.c
@@ -1123,7 +1123,7 @@ rc_test(struct rc_softc *sc)
 
 	chipid = RC_FAKEID;
 
-	/* First, reset board to inital state */
+	/* First, reset board to initial state */
 	rc_hwreset(sc, chipid);
 
 	divs = RC_BRD(19200);
diff --git a/sys/dev/rl/if_rlreg.h b/sys/dev/rl/if_rlreg.h
index 5a5c5f539132..2cef251b8d1f 100644
--- a/sys/dev/rl/if_rlreg.h
+++ b/sys/dev/rl/if_rlreg.h
@@ -681,7 +681,7 @@ struct rl_desc {
 #define	RL_TDESC_STAT_LINKFAIL	0x00200000	/* link faulure */
 #define	RL_TDESC_STAT_OWINCOL	0x00400000	/* out-of-window collision */
 #define	RL_TDESC_STAT_TXERRSUM	0x00800000	/* transmit error summary */
-#define	RL_TDESC_STAT_UNDERRUN	0x02000000	/* TX underrun occured */
+#define	RL_TDESC_STAT_UNDERRUN	0x02000000	/* TX underrun occurred */
 #define	RL_TDESC_STAT_OWN	0x80000000
 
 /*
diff --git a/sys/dev/sbni/if_sbni.c b/sys/dev/sbni/if_sbni.c
index 6281e7dce536..50a3bcd42932 100644
--- a/sys/dev/sbni/if_sbni.c
+++ b/sys/dev/sbni/if_sbni.c
@@ -607,7 +607,7 @@ upload_data(struct sbni_softc *sc, u_int framelen, u_int frameno,
 
 		/*
 		 * if CRC is right but framelen incorrect then transmitter
-		 * error was occured... drop entire packet
+		 * error was occurred... drop entire packet
 		 */
 		} else if ((frame_ok = skip_tail(sc, framelen, crc)) != 0) {
 			sc->wait_frameno = 0;
diff --git a/sys/dev/sf/if_sf.c b/sys/dev/sf/if_sf.c
index bd685f132a3f..2d0df0ffa5d8 100644
--- a/sys/dev/sf/if_sf.c
+++ b/sys/dev/sf/if_sf.c
@@ -720,7 +720,7 @@ sf_probe(device_t dev)
 	}
 
 	if (vid == AD_VENDORID && did == AD_DEVICEID_STARFIRE) {
-		/* unkown subdevice */
+		/* unknown subdevice */
 		device_set_desc(dev, sf_devs[0].sf_name);
 		return (BUS_PROBE_DEFAULT);
 	}
@@ -1515,7 +1515,7 @@ sf_fixup_rx(struct mbuf *m)
  * it is marred by one truly stupid design flaw, which is that receive
  * buffer addresses must be aligned on a longword boundary. This forces
  * the packet payload to be unaligned, which is suboptimal on the x86 and
- * completely unuseable on the Alpha. Our only recourse is to copy received
+ * completely unusable on the Alpha. Our only recourse is to copy received
  * packets into properly aligned buffers before handing them off.
  */
 static int
diff --git a/sys/dev/sfxge/common/efx_bootcfg.c b/sys/dev/sfxge/common/efx_bootcfg.c
index 16ee33798841..a9717bb71313 100644
--- a/sys/dev/sfxge/common/efx_bootcfg.c
+++ b/sys/dev/sfxge/common/efx_bootcfg.c
@@ -73,7 +73,7 @@ efx_bootcfg_verify(
 	size_t used = 0;
 	efx_rc_t rc;
 
-	/* Start parsing tags immediatly after the checksum */
+	/* Start parsing tags immediately after the checksum */
 	for (offset = 1; offset < size; ) {
 		uint8_t tag;
 		uint8_t length;
diff --git a/sys/dev/sfxge/common/efx_nic.c b/sys/dev/sfxge/common/efx_nic.c
index dd28ecef029f..149cd23c816b 100644
--- a/sys/dev/sfxge/common/efx_nic.c
+++ b/sys/dev/sfxge/common/efx_nic.c
@@ -390,7 +390,7 @@ efx_nic_create(
 	case EFX_FAMILY_MEDFORD:
 		enp->en_enop = (efx_nic_ops_t *)&__efx_nic_medford_ops;
 		/*
-		 * FW_ASSISTED_TSO ommitted as Medford only supports firmware
+		 * FW_ASSISTED_TSO omitted as Medford only supports firmware
 		 * assisted TSO version 2, not the v1 scheme used on Huntington.
 		 */
 		enp->en_features =
diff --git a/sys/dev/sfxge/common/efx_regs_mcdi.h b/sys/dev/sfxge/common/efx_regs_mcdi.h
index a1d76abe4e0b..bc1451dd5686 100644
--- a/sys/dev/sfxge/common/efx_regs_mcdi.h
+++ b/sys/dev/sfxge/common/efx_regs_mcdi.h
@@ -754,7 +754,7 @@
 #define	FCDI_EVENT_PORT_CONFIG_DATA_WIDTH 32
 
 /* FCDI_EXTENDED_EVENT_PPS structuredef: Extended FCDI event to send PPS events
- * to the MC. Note that this structure | is overlayed over a normal FCDI event
+ * to the MC. Note that this structure | is overlaid over a normal FCDI event
  * such that bits 32-63 containing | event code, level, source etc remain the
  * same. In this case the data | field of the header is defined to be the
  * number of timestamps
@@ -11469,7 +11469,7 @@
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_LENMIN 12
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_LENMAX 252
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_LEN(num) (0+12*(num))
-/* Raw buffer table entries, layed out as BUFTBL_ENTRY. */
+/* Raw buffer table entries, laid out as BUFTBL_ENTRY. */
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_ENTRY_OFST 0
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_ENTRY_LEN 12
 #define	MC_CMD_DUMP_BUFTBL_ENTRIES_OUT_ENTRY_MINNUM 1
@@ -13322,7 +13322,7 @@
 #define	MC_CMD_PRIVILEGE_MASK_IN_GRP_ALL_MULTICAST     0x200 /* enum */
 #define	MC_CMD_PRIVILEGE_MASK_IN_GRP_PROMISCUOUS       0x400 /* enum */
 /* enum: Allows to set the TX packets' source MAC address to any arbitrary MAC
- * adress.
+ * address.
  */
 #define	MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX   0x800
 /* enum: Privilege that allows a Function to change the MAC address configured
diff --git a/sys/dev/sfxge/common/hunt_nvram.c b/sys/dev/sfxge/common/hunt_nvram.c
index dd471f4a19ca..8abe73df17ce 100644
--- a/sys/dev/sfxge/common/hunt_nvram.c
+++ b/sys/dev/sfxge/common/hunt_nvram.c
@@ -1113,7 +1113,7 @@ ef10_nvram_segment_write_tlv(
 	 * Read the segment from NVRAM into the segment_data buffer and validate
 	 * it, returning if it does not validate. This is not a failure unless
 	 * this is the first segment in a partition. In this case the caller
-	 * must propogate the error.
+	 * must propagate the error.
 	 */
 	status = ef10_nvram_read_tlv_segment(enp, partn, *partn_offsetp,
 	    *seg_datap, *src_remain_lenp);
diff --git a/sys/dev/sfxge/common/siena_nvram.c b/sys/dev/sfxge/common/siena_nvram.c
index 9708e0cfb810..b03112096813 100644
--- a/sys/dev/sfxge/common/siena_nvram.c
+++ b/sys/dev/sfxge/common/siena_nvram.c
@@ -342,7 +342,7 @@ siena_nvram_get_dynamic_cfg(
 	    != SIENA_MC_DYNAMIC_CONFIG_MAGIC)
 		goto invalid1;
 
-	/* All future versions of the structure must be backwards compatable */
+	/* All future versions of the structure must be backwards compatible */
 	EFX_STATIC_ASSERT(SIENA_MC_DYNAMIC_CONFIG_VERSION == 0);
 
 	hdr_length = EFX_WORD_FIELD(dcfg->length, EFX_WORD_0);
diff --git a/sys/dev/sfxge/common/siena_vpd.c b/sys/dev/sfxge/common/siena_vpd.c
index 7a7ce675ef56..4bee1e9cd232 100644
--- a/sys/dev/sfxge/common/siena_vpd.c
+++ b/sys/dev/sfxge/common/siena_vpd.c
@@ -80,7 +80,7 @@ siena_vpd_get_static(
 		goto fail4;
 	}
 
-	/* All future versions of the structure must be backwards compatable */
+	/* All future versions of the structure must be backwards compatible */
 	EFX_STATIC_ASSERT(SIENA_MC_STATIC_CONFIG_VERSION == 0);
 
 	hdr_length = EFX_WORD_FIELD(scfg->length, EFX_WORD_0);
diff --git a/sys/dev/sfxge/sfxge_rx.c b/sys/dev/sfxge/sfxge_rx.c
index 876bd1fcb9a4..4424c9b1b219 100644
--- a/sys/dev/sfxge/sfxge_rx.c
+++ b/sys/dev/sfxge/sfxge_rx.c
@@ -829,7 +829,7 @@ sfxge_rx_qcomplete(struct sfxge_rxq *rxq, boolean_t eop)
 		if (rx_desc->flags & (EFX_ADDR_MISMATCH | EFX_DISCARD))
 			goto discard;
 
-		/* Read the length from the psuedo header if required */
+		/* Read the length from the pseudo header if required */
 		if (rx_desc->flags & EFX_PKT_PREFIX_LEN) {
 			uint16_t tmp_size;
 			int rc;
diff --git a/sys/dev/sfxge/sfxge_tx.c b/sys/dev/sfxge/sfxge_tx.c
index 6e93b12fbec9..69ea549edf2d 100644
--- a/sys/dev/sfxge/sfxge_tx.c
+++ b/sys/dev/sfxge/sfxge_tx.c
@@ -207,7 +207,7 @@ sfxge_tx_qcomplete(struct sfxge_txq *txq, struct sfxge_evq *evq)
 static unsigned int
 sfxge_is_mbuf_non_tcp(struct mbuf *mbuf)
 {
-	/* Absense of TCP checksum flags does not mean that it is non-TCP
+	/* Absence of TCP checksum flags does not mean that it is non-TCP
 	 * but it should be true if user wants to achieve high throughput.
 	 */
 	return (!(mbuf->m_pkthdr.csum_flags & (CSUM_IP_TCP | CSUM_IP6_TCP)));
diff --git a/sys/dev/si/si.c b/sys/dev/si/si.c
index 163dd3103046..5c2ccbb49190 100644
--- a/sys/dev/si/si.c
+++ b/sys/dev/si/si.c
@@ -541,7 +541,7 @@ try_next:
 	pp = sc->sc_ports;
 	nmodule = 0;
 	modp = (struct si_module *)(maddr + 0x80);
-	uart_type = 1000;	/* arbitary, > uchar_max */
+	uart_type = 1000;	/* arbitrary, > uchar_max */
 	for (;;) {
 		switch (modp->sm_type) {
 		case TA4:
diff --git a/sys/dev/si/si.h b/sys/dev/si/si.h
index 64891ece02d2..0a45a3cebd4f 100644
--- a/sys/dev/si/si.h
+++ b/sys/dev/si/si.h
@@ -76,7 +76,7 @@ struct si_module {
 };
 
 /*
- *	The 'next' pointer & with 0x7fff + SI base addres give
+ *	The 'next' pointer & with 0x7fff + SI base address give
  *	the address of the next module block if fitted. (else 0)
  *	Note that next points to the TX buffer so 0x60 must be
  *	subtracted to find the true base.
diff --git a/sys/dev/siis/siis.c b/sys/dev/siis/siis.c
index 0841471393a7..989a7807b9bc 100644
--- a/sys/dev/siis/siis.c
+++ b/sys/dev/siis/siis.c
@@ -856,7 +856,7 @@ siis_ch_intr(void *data)
 	/* Read command statuses. */
 	sstatus = ATA_INL(ch->r_mem, SIIS_P_SS);
 	ok = ch->rslots & ~sstatus;
-	/* Complete all successfull commands. */
+	/* Complete all successful commands. */
 	for (i = 0; i < SIIS_MAX_SLOTS; i++) {
 		if ((ok >> i) & 1)
 			siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE);
diff --git a/sys/dev/siis/siis.h b/sys/dev/siis/siis.h
index 6d8a063d035b..d0e0d88df713 100644
--- a/sys/dev/siis/siis.h
+++ b/sys/dev/siis/siis.h
@@ -389,7 +389,7 @@ struct siis_channel {
 	int			numtslots[SIIS_MAX_SLOTS]; /* Number of tagged slots */
 	int			numhslots;	/* Number of held slots */
 	int			recoverycmd;	/* Our READ LOG active */
-	int			fatalerr;	/* Fatal error happend */
+	int			fatalerr;	/* Fatal error happened */
 	int			recovery;	/* Some slots are in error */
 	union ccb		*frozen;	/* Frozen command */
 
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c
index 60ba8b85c4b4..166e6bf11597 100644
--- a/sys/dev/sio/sio.c
+++ b/sys/dev/sio/sio.c
@@ -2323,7 +2323,7 @@ siocntxwait(iobase)
 /*
  * Read the serial port specified and try to figure out what speed
  * it's currently running at.  We're assuming the serial port has
- * been initialized and is basicly idle.  This routine is only intended
+ * been initialized and is basically idle.  This routine is only intended
  * to be run at system startup.
  *
  * If the value read from the serial port doesn't make sense, return 0.
diff --git a/sys/dev/sk/if_sk.c b/sys/dev/sk/if_sk.c
index bdf4365c2f17..b0a46c9d97ef 100644
--- a/sys/dev/sk/if_sk.c
+++ b/sys/dev/sk/if_sk.c
@@ -3275,7 +3275,7 @@ sk_init_xmac(sc_if)
 	 * that jumbo frames larger than 8192 bytes will be
 	 * truncated. Disabling all bad frame filtering causes
 	 * the RX FIFO to operate in streaming mode, in which
-	 * case the XMAC will start transfering frames out of the
+	 * case the XMAC will start transferring frames out of the
 	 * RX FIFO as soon as the FIFO threshold is reached.
 	 */
 	if (ifp->if_mtu > SK_MAX_FRAMELEN) {
diff --git a/sys/dev/sk/yukonreg.h b/sys/dev/sk/yukonreg.h
index efe71a0d3462..33ca8b2ae388 100644
--- a/sys/dev/sk/yukonreg.h
+++ b/sys/dev/sk/yukonreg.h
@@ -165,7 +165,7 @@
 /* SMI Data Register (SMIDR) */
 #define YUKON_SMIDR		0x0084
 
-/* PHY Addres Register (PAR) */
+/* PHY Address Register (PAR) */
 #define YUKON_PAR		0x0088
 
 #define YU_PAR_MIB_CLR		0x0020	/* MIB Counters Clear Mode */
diff --git a/sys/dev/sn/if_sn.c b/sys/dev/sn/if_sn.c
index 77ec927e6705..7ac2a13170cd 100644
--- a/sys/dev/sn/if_sn.c
+++ b/sys/dev/sn/if_sn.c
@@ -283,7 +283,7 @@ sninit_locked(void *xsc)
 	CSR_WRITE_2(sc, TXMIT_CONTROL_REG_W, 0x0000);
 
 	/*
-	 * Set the control register to automatically release succesfully
+	 * Set the control register to automatically release successfully
 	 * transmitted packets (making the best use out of our limited
 	 * memory) and to enable the EPH interrupt on certain TX errors.
 	 */
diff --git a/sys/dev/sn/if_snreg.h b/sys/dev/sn/if_snreg.h
index 8b1b701b7895..9fab405a99aa 100644
--- a/sys/dev/sn/if_snreg.h
+++ b/sys/dev/sn/if_snreg.h
@@ -115,7 +115,7 @@
  * the Ethernet Protocol Handler jumbled together.  In auto-release
  * mode this information is simply discarded after each TX.  This info
  * is copied to the status word of in-memory packets after transmit
- * where relevent statuses can be checked.
+ * where relevant statuses can be checked.
  */
 #define EPH_STATUS_REG_W 0x02
 
@@ -145,7 +145,7 @@
 #define RCR_RX_ABORT    0x0001	/* Received huge packet */
 #define RCR_PROMISC     0x0002	/* enable promiscuous mode */
 #define RCR_ALMUL       0x0004	/* receive all multicast packets */
-#define RCR_ENABLE      0x0100	/* IFF this is set, we can recieve packets */
+#define	RCR_ENABLE      0x0100	/* IFF this is set, we can receive packets */
 #define RCR_STRIP_CRC   0x0200	/* strips CRC */
 #define RCR_GAIN_BITS   0x0c00	/* PLL Gain control (for testing) */
 #define RCR_FILT_CAR    0x4000	/* Enable 12 bit carrier filter */
diff --git a/sys/dev/snc/dp83932.c b/sys/dev/snc/dp83932.c
index a496b672dc09..acda11c2c00f 100644
--- a/sys/dev/snc/dp83932.c
+++ b/sys/dev/snc/dp83932.c
@@ -405,7 +405,7 @@ sncinit_locked(struct snc_softc *sc)
 		/* already running */
 		return;
 
-	NIC_PUT(sc, SNCR_CR, CR_RST);	/* DCR only accessable in reset mode! */
+	NIC_PUT(sc, SNCR_CR, CR_RST);	/* DCR only accessible in reset mode! */
 
 	/* config it */
 	NIC_PUT(sc, SNCR_DCR, (sc->sncr_dcr |
@@ -1001,7 +1001,7 @@ sonicrxint(struct snc_softc *sc)
 		 *
 		 * If this was the last packet in the RRA, give the RRA to
 		 * the chip again.
-		 * If sonic read didnt copy it out then we would have to
+		 * If sonic read didn't copy it out then we would have to
 		 * wait !!
 		 * (dont bother add it back in again straight away)
 		 *
diff --git a/sys/dev/snc/dp83932var.h b/sys/dev/snc/dp83932var.h
index 2ed9b9d36798..6ee51085b9b0 100644
--- a/sys/dev/snc/dp83932var.h
+++ b/sys/dev/snc/dp83932var.h
@@ -211,7 +211,7 @@ typedef struct snc_softc {
 
 /*
  * Accessing SONIC data structures and registers as 32 bit values
- * makes code endianess independent.  The SONIC is however always in
+ * makes code endianness independent.  The SONIC is however always in
  * bigendian mode so it is necessary to ensure that data structures shared
  * between the CPU and the SONIC are always in bigendian order.
  */
diff --git a/sys/dev/sym/sym_hipd.c b/sys/dev/sym/sym_hipd.c
index 53c66bbbf085..5981e31288dc 100644
--- a/sys/dev/sym/sym_hipd.c
+++ b/sys/dev/sym/sym_hipd.c
@@ -4001,7 +4001,7 @@ static void sym_recover_scsi_int (hcb_p np, u_char hsts)
 
 	/*
 	 *  If we haven't been interrupted inside the SCRIPTS
-	 *  critical pathes, we can safely restart the SCRIPTS
+	 *  critical paths, we can safely restart the SCRIPTS
 	 *  and trust the DSA value if it matches a CCB.
 	 */
 	if ((!(dsp > SCRIPTA_BA (np, getjob_begin) &&
@@ -5185,7 +5185,7 @@ static void sym_sir_task_recovery(hcb_p np, int num)
 
 		/*
 		 *  Otherwise, check for the LUN and TASK(s)
-		 *  concerned by the cancelation.
+		 *  concerned by the cancellation.
 		 *  If it is not ABORT_TAG then it is CLEAR_QUEUE
 		 *  or an ABORT message :-)
 		 */
@@ -6134,7 +6134,7 @@ static void sym_int_sir (hcb_p np)
 		}
 		goto out;
 	/*
-	 *  The device wants us to tranfer more data than
+	 *  The device wants us to transfer more data than
 	 *  expected or in the wrong direction.
 	 *  The number of extra bytes is in scratcha.
 	 *  It is a data overrun condition.
diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index f109b24f9bfe..063083e0b41d 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -3541,7 +3541,7 @@ next_code:
 		if (cold) {
 		    /*
 		     * While devices are being probed, the screen saver need
-		     * to be invoked explictly. XXX
+		     * to be invoked explicitly. XXX
 		     */
 		    if (sc->flags & SC_SCRN_BLANKED) {
 			scsplash_stick(FALSE);
diff --git a/sys/dev/ti/if_ti.c b/sys/dev/ti/if_ti.c
index 538d65dbe986..d3f15feb837a 100644
--- a/sys/dev/ti/if_ti.c
+++ b/sys/dev/ti/if_ti.c
@@ -2513,7 +2513,7 @@ ti_attach(device_t dev)
 		/*
 		 * Copper cards allow manual 10/100 mode selection,
 		 * but not manual 1000baseTX mode selection. Why?
-		 * Becuase currently there's no way to specify the
+		 * Because currently there's no way to specify the
 		 * master/slave setting through the firmware interface,
 		 * so Alteon decided to just bag it and handle it
 		 * via autonegotiation.
@@ -2747,7 +2747,7 @@ ti_discard_jumbo(struct ti_softc *sc, int i)
  * Note: we have to be able to handle three possibilities here:
  * 1) the frame is from the mini receive ring (can only happen)
  *    on Tigon 2 boards)
- * 2) the frame is from the jumbo recieve ring
+ * 2) the frame is from the jumbo receive ring
  * 3) the frame is from the standard receive ring
  */
 
@@ -2987,7 +2987,7 @@ ti_intr(void *xsc)
 		return;
 	}
 
-	/* Ack interrupt and stop others from occuring. */
+	/* Ack interrupt and stop others from occurring. */
 	CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
 
 	if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
@@ -3379,7 +3379,7 @@ ti_ifmedia_upd_locked(struct ti_softc *sc)
 
 		/*
 		 * Transmit flow control can also cause problems on the
-		 * Tigon 2, apparantly with both the copper and fiber
+		 * Tigon 2, apparently with both the copper and fiber
 		 * boards.  The symptom is that the interface will just
 		 * hang.  This was reproduced with Alteon 180 switches.
 		 */
diff --git a/sys/dev/ti/if_tireg.h b/sys/dev/ti/if_tireg.h
index 63b93f4fbb3c..d55e1507fff0 100644
--- a/sys/dev/ti/if_tireg.h
+++ b/sys/dev/ti/if_tireg.h
@@ -140,7 +140,7 @@
 #define TI_FIRMWARE_FIX			0xb
 
 /*
- * Miscelaneous Local Control register.
+ * Miscellaneous Local Control register.
  */
 #define TI_MLC_EE_WRITE_ENB		0x00000010
 #define TI_MLC_SRAM_BANK_SIZE		0x00000300 /* Tigon 2 only */
@@ -337,7 +337,7 @@
  */
 #define TI_OPMODE_BYTESWAP_BD		0x00000002
 #define TI_OPMODE_WORDSWAP_BD		0x00000004
-#define TI_OPMODE_WARN_ENB		0x00000008 /* not yet implimented */
+#define	TI_OPMODE_WARN_ENB		0x00000008 /* not yet implemented */
 #define TI_OPMODE_BYTESWAP_DATA		0x00000010
 #define TI_OPMODE_1_DMA_ACTIVE		0x00000040
 #define TI_OPMODE_SBUS			0x00000100
@@ -347,7 +347,7 @@
 #define TI_OPMODE_NO_EVENT_INTRS	0x00001000
 #define TI_OPMODE_NO_TX_INTRS		0x00002000
 #define TI_OPMODE_NO_RX_INTRS		0x00004000
-#define TI_OPMODE_FATAL_ENB		0x40000000 /* not yet implimented */
+#define	TI_OPMODE_FATAL_ENB		0x40000000 /* not yet implemented */
 #define TI_OPMODE_JUMBO_HDRSPLIT	0x00008000
 
 /*
diff --git a/sys/dev/tl/if_tl.c b/sys/dev/tl/if_tl.c
index 455dd38d1cfa..b80e81f7af1b 100644
--- a/sys/dev/tl/if_tl.c
+++ b/sys/dev/tl/if_tl.c
@@ -116,7 +116,7 @@ __FBSDID("$FreeBSD$");
  * To transmit frames, the driver again sets up lists and fragment
  * descriptors, only this time the buffers contain frame data that
  * is to be DMA'ed into the chip instead of out of it. Once the chip
- * has transfered the data into its on-board SRAM, it will trigger a
+ * has transferred the data into its on-board SRAM, it will trigger a
  * TX 'end of frame' interrupt. It will also generate an 'end of channel'
  * interrupt when it reaches the end of the list.
  */
diff --git a/sys/dev/tpm/tpm.c b/sys/dev/tpm/tpm.c
index a90f8ba71c8c..3ac52d6e7691 100644
--- a/sys/dev/tpm/tpm.c
+++ b/sys/dev/tpm/tpm.c
@@ -70,7 +70,7 @@ __FBSDID("$FreeBSD$");
 #define IRQUNK	-1
 #endif
 
-#define	TPM_ACCESS			0x0000	/* acess register */
+#define	TPM_ACCESS			0x0000	/* access register */
 #define	TPM_ACCESS_ESTABLISHMENT	0x01	/* establishment */
 #define	TPM_ACCESS_REQUEST_USE		0x02	/* request using locality */
 #define	TPM_ACCESS_REQUEST_PENDING	0x04	/* pending request */
@@ -820,7 +820,7 @@ tpm_waitfor(struct tpm_softc *sc, u_int8_t b0, int tmo, void *c)
 		b = b0;
 
 		/*
-		 * Wait for data ready.  This interrupt only occures
+		 * Wait for data ready.  This interrupt only occurs
 		 * when both TPM_STS_VALID and TPM_STS_DATA_AVAIL are asserted.
 		 * Thus we don't have to bother with TPM_STS_VALID
 		 * separately and can just return.
diff --git a/sys/dev/tpm/tpm_acpi.c b/sys/dev/tpm/tpm_acpi.c
index 5d83477ec4d4..b16dd234b3df 100644
--- a/sys/dev/tpm/tpm_acpi.c
+++ b/sys/dev/tpm/tpm_acpi.c
@@ -62,7 +62,7 @@ tpm_acpi_probe(device_t dev)
 
 static device_method_t tpm_acpi_methods[] = {
 #if 0
-	/*In some case, TPM existance is found only in TPCA header*/
+	/*In some case, TPM existence is found only in TPCA header*/
 	DEVMETHOD(device_identify,	tpm_acpi_identify),
 #endif
 
diff --git a/sys/dev/trm/trm.c b/sys/dev/trm/trm.c
index f86523e04a0b..e5f02dd8793a 100644
--- a/sys/dev/trm/trm.c
+++ b/sys/dev/trm/trm.c
@@ -1121,7 +1121,7 @@ trm_reset(PACB pACB)
 	pACB->pActiveDCB = NULL;
 	pACB->ACBFlag = 0;/* RESET_DETECT, RESET_DONE ,RESET_DEV */
 	trm_DoWaitingSRB(pACB);
-	/* Tell the XPT layer that a bus reset occured    */
+	/* Tell the XPT layer that a bus reset occurred    */
 	if (pACB->ppath != NULL)
 		xpt_async(AC_BUS_RESET, pACB->ppath, NULL);
 	splx(intflag);
@@ -1890,7 +1890,7 @@ trm_MsgInPhase0(PACB pACB, PSRB pSRB, u_int16_t *pscsi_status)
 		}
 	} else {	
 	  /* 
-   	   * Parsing incomming extented messages 
+   	   * Parsing incoming extented messages 
 	   */
 		*pSRB->pMsgPtr = message_in_code;
 		pSRB->MsgCnt++;
diff --git a/sys/dev/trm/trm.h b/sys/dev/trm/trm.h
index 97b318ae8c13..f72335ae2398 100644
--- a/sys/dev/trm/trm.h
+++ b/sys/dev/trm/trm.h
@@ -926,7 +926,7 @@ typedef struct NVRAM_TARGET_STRUCT
 #define NTC_DO_SEND_START       0x08    /* Send start command SPINUP*/
 #define NTC_DO_DISCONNECT   	0x04	/* Enable SCSI disconnect	*/
 #define NTC_DO_SYNC_NEGO    	0x02    /* Sync negotiation	    	*/
-#define NTC_DO_PARITY_CHK   	0x01    /* (it sould define at NAC )
+#define	NTC_DO_PARITY_CHK   	0x01    /* (it should define at NAC )
                                            Parity check enable		*/
 
 /*
diff --git a/sys/dev/tsec/if_tsec.h b/sys/dev/tsec/if_tsec.h
index 7c6bc302d2e3..af703f2d7581 100644
--- a/sys/dev/tsec/if_tsec.h
+++ b/sys/dev/tsec/if_tsec.h
@@ -60,12 +60,12 @@ struct tsec_softc {
 	bus_dma_tag_t	tsec_tx_dtag;	/* TX descriptors tag */
 	bus_dmamap_t	tsec_tx_dmap;	/* TX descriptors map */
 	struct tsec_desc *tsec_tx_vaddr;/* vadress of TX descriptors */
-	uint32_t	tsec_tx_raddr;	/* real adress of TX descriptors */
+	uint32_t	tsec_tx_raddr;	/* real address of TX descriptors */
 
 	bus_dma_tag_t	tsec_rx_dtag;	/* RX descriptors tag */
 	bus_dmamap_t	tsec_rx_dmap;	/* RX descriptors map */
 	struct tsec_desc *tsec_rx_vaddr; /* vadress of RX descriptors */
-	uint32_t	tsec_rx_raddr;	/* real adress of RX descriptors */
+	uint32_t	tsec_rx_raddr;	/* real address of RX descriptors */
 
 	bus_dma_tag_t	tsec_tx_mtag;	/* TX mbufs tag */
 	bus_dma_tag_t	tsec_rx_mtag;	/* TX mbufs tag */
@@ -73,7 +73,7 @@ struct tsec_softc {
 	struct rx_data_type {
 		bus_dmamap_t	map;	/* mbuf map */
 		struct mbuf	*mbuf;
-		uint32_t	paddr;	/* DMA addres of buffer */
+		uint32_t	paddr;	/* DMA address of buffer */
 	} rx_data[TSEC_RX_NUM_DESC];
 
 	uint32_t	tx_cur_desc_cnt;
diff --git a/sys/dev/twe/twe.c b/sys/dev/twe/twe.c
index 51c760c6c717..cdb218032f10 100644
--- a/sys/dev/twe/twe.c
+++ b/sys/dev/twe/twe.c
@@ -531,7 +531,7 @@ twe_ioctl(struct twe_softc *sc, u_long ioctlcmd, void *addr)
     case TWEIO_COMMAND:
 	/*
 	 * if there's a data buffer, allocate and copy it in.
-	 * Must be in multipled of 512 bytes.
+	 * Must be in multiplied of 512 bytes.
 	 */
 	tr_length = roundup2(tu->tu_size, 512);
 	if (tr_length > 0) {
diff --git a/sys/dev/twe/twevar.h b/sys/dev/twe/twevar.h
index 38e1c8149fff..616f12b89ca5 100644
--- a/sys/dev/twe/twevar.h
+++ b/sys/dev/twe/twevar.h
@@ -143,7 +143,7 @@ struct twe_softc
 };
 
 /*
- * Interface betwen driver core and platform-dependant code.
+ * Interface between driver core and platform-dependant code.
  */
 extern int	twe_setup(struct twe_softc *sc);		/* do early driver/controller setup */
 extern void	twe_init(struct twe_softc *sc);			/* init controller */
diff --git a/sys/dev/tws/tws_cam.c b/sys/dev/tws/tws_cam.c
index 00027151694b..9866a29fe345 100644
--- a/sys/dev/tws/tws_cam.c
+++ b/sys/dev/tws/tws_cam.c
@@ -1099,7 +1099,7 @@ tws_intr_attn_aen(struct tws_softc *sc)
 {
     u_int32_t db=0;
 
-    /* maskoff db intrs untill all the aens are fetched */
+    /* maskoff db intrs until all the aens are fetched */
     /* tws_disable_db_intr(sc); */
     tws_fetch_aen((void *)sc);
     tws_write_reg(sc, TWS_I2O0_HOBDBC, TWS_BIT18, 4);
diff --git a/sys/dev/tws/tws_hdm.c b/sys/dev/tws/tws_hdm.c
index 2e568c8653fc..83d5a50b812d 100644
--- a/sys/dev/tws/tws_hdm.c
+++ b/sys/dev/tws/tws_hdm.c
@@ -312,7 +312,7 @@ tws_submit_command(struct tws_softc *sc, struct tws_request *req)
         TWS_TRACE_DEBUG(sc, "inbound fifo empty", mfa, 0);
 
         /* 
-         * Generaly we should not get here.
+         * Generally we should not get here.
          * If the fifo was empty we can't do any thing much 
          * retry later 
          */
@@ -428,7 +428,7 @@ tws_turn_on_interrupts(struct tws_softc *sc)
 {
 
     TWS_TRACE_DEBUG(sc, "entry", 0, 0);
-    /* turn on responce and db interrupt only */
+    /* turn on response and db interrupt only */
     tws_write_reg(sc, TWS_I2O0_HIMASK, TWS_BIT0, 4);
 
 }
diff --git a/sys/dev/tx/if_tx.c b/sys/dev/tx/if_tx.c
index 42b327fbdf26..72a4c08958bb 100644
--- a/sys/dev/tx/if_tx.c
+++ b/sys/dev/tx/if_tx.c
@@ -796,7 +796,7 @@ epic_rx_done(epic_softc_t *sc)
 		(*ifp->if_input)(ifp, m);
 		EPIC_LOCK(sc);
 
-		/* Successfuly received frame */
+		/* Successfully received frame */
 		if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
         }
 	bus_dmamap_sync(sc->rtag, sc->rmap,
@@ -897,7 +897,7 @@ epic_intr(void *arg)
 		      INTSTAT_APE|INTSTAT_DPE|INTSTAT_TXU|INTSTAT_RXE)) {
     	    if (status & (INTSTAT_FATAL|INTSTAT_PMA|INTSTAT_PTA|
 			  INTSTAT_APE|INTSTAT_DPE)) {
-		device_printf(sc->dev, "PCI fatal errors occured: %s%s%s%s\n",
+		device_printf(sc->dev, "PCI fatal errors occurred: %s%s%s%s\n",
 		    (status & INTSTAT_PMA) ? "PMA " : "",
 		    (status & INTSTAT_PTA) ? "PTA " : "",
 		    (status & INTSTAT_APE) ? "APE " : "",
diff --git a/sys/dev/tx/if_txreg.h b/sys/dev/tx/if_txreg.h
index 63891cda2457..059c2c049153 100644
--- a/sys/dev/tx/if_txreg.h
+++ b/sys/dev/tx/if_txreg.h
@@ -90,7 +90,7 @@
 #define INTSTAT_CNT	0x00000200
 #define INTSTAT_PREI	0x00000400
 #define INTSTAT_RCT	0x00000800	
-#define INTSTAT_FATAL	0x00001000	/* One of DPE,APE,PMA,PTA happend */	
+#define	INTSTAT_FATAL	0x00001000	/* One of DPE,APE,PMA,PTA happened */	
 #define INTSTAT_UNUSED1	0x00002000
 #define INTSTAT_UNUSED2	0x00004000	
 #define INTSTAT_GP2	0x00008000	/* PHY Event */	
diff --git a/sys/dev/uart/uart_bus_fdt.c b/sys/dev/uart/uart_bus_fdt.c
index 5308a2e7c41b..faea2cfb32e5 100644
--- a/sys/dev/uart/uart_bus_fdt.c
+++ b/sys/dev/uart/uart_bus_fdt.c
@@ -68,7 +68,7 @@ int
 uart_fdt_get_clock(phandle_t node, pcell_t *cell)
 {
 
-	/* clock-frequency is a FreeBSD-only extention. */
+	/* clock-frequency is a FreeBSD-only extension. */
 	if ((OF_getencprop(node, "clock-frequency", cell,
 	    sizeof(*cell))) <= 0) {
 		/* Try to retrieve parent 'bus-frequency' */
diff --git a/sys/dev/uart/uart_dev_lpc.c b/sys/dev/uart/uart_dev_lpc.c
index f8d77d46c480..306c9f151501 100644
--- a/sys/dev/uart/uart_dev_lpc.c
+++ b/sys/dev/uart/uart_dev_lpc.c
@@ -803,7 +803,7 @@ done:
 #if 0
 	/*
 	 * XXX there are some issues related to hardware flow control and
-	 * it's likely that uart(4) is the cause. This basicly needs more
+	 * it's likely that uart(4) is the cause. This basically needs more
 	 * investigation, but we avoid using for hardware flow control
 	 * until then.
 	 */
@@ -911,7 +911,7 @@ lpc_ns8250_bus_grab(struct uart_softc *sc)
 	/*
 	 * turn off all interrupts to enter polling mode. Leave the
 	 * saved mask alone. We'll restore whatever it was in ungrab.
-	 * All pending interupt signals are reset when IER is set to 0.
+	 * All pending interrupt signals are reset when IER is set to 0.
 	 */
 	uart_lock(sc->sc_hwmtx);
 	uart_setreg(bas, REG_IER, 0);
diff --git a/sys/dev/uart/uart_dev_ns8250.c b/sys/dev/uart/uart_dev_ns8250.c
index a36afefb649f..2498fa37db76 100644
--- a/sys/dev/uart/uart_dev_ns8250.c
+++ b/sys/dev/uart/uart_dev_ns8250.c
@@ -565,7 +565,7 @@ ns8250_bus_getsig(struct uart_softc *sc)
 	 * when capturing PPS pulses which are too narrow for software detection
 	 * to see the edges.  Hardware delta for RI doesn't work like the
 	 * others, so always use software for it.  Other threads may be changing
-	 * other (non-MSR) bits in sc_hwsig, so loop until it can succesfully
+	 * other (non-MSR) bits in sc_hwsig, so loop until it can successfully
 	 * update without other changes happening.  Note that the SIGCHGxx()
 	 * macros carefully preserve the delta bits when we have to loop several
 	 * times and a signal transitions between iterations.
@@ -882,7 +882,7 @@ ns8250_bus_probe(struct uart_softc *sc)
 #if 0
 	/*
 	 * XXX there are some issues related to hardware flow control and
-	 * it's likely that uart(4) is the cause. This basicly needs more
+	 * it's likely that uart(4) is the cause. This basically needs more
 	 * investigation, but we avoid using for hardware flow control
 	 * until then.
 	 */
@@ -996,7 +996,7 @@ ns8250_bus_grab(struct uart_softc *sc)
 	/*
 	 * turn off all interrupts to enter polling mode. Leave the
 	 * saved mask alone. We'll restore whatever it was in ungrab.
-	 * All pending interupt signals are reset when IER is set to 0.
+	 * All pending interrupt signals are reset when IER is set to 0.
 	 */
 	uart_lock(sc->sc_hwmtx);
 	ier = uart_getreg(bas, REG_IER);
diff --git a/sys/dev/virtio/console/virtio_console.c b/sys/dev/virtio/console/virtio_console.c
index 902c85f2dbf6..0a2fa0a8026f 100644
--- a/sys/dev/virtio/console/virtio_console.c
+++ b/sys/dev/virtio/console/virtio_console.c
@@ -1177,7 +1177,7 @@ vtcon_port_enable_intr(struct vtcon_port *port)
 {
 
 	/*
-	 * NOTE: The out virtqueue is always polled, so its interupt
+	 * NOTE: The out virtqueue is always polled, so its interrupt
 	 * kept disabled.
 	 */
 	virtqueue_enable_intr(port->vtcport_invq);
diff --git a/sys/dev/vx/if_vx.c b/sys/dev/vx/if_vx.c
index 47a6cd98455f..08d84a64f286 100644
--- a/sys/dev/vx/if_vx.c
+++ b/sys/dev/vx/if_vx.c
@@ -251,7 +251,7 @@ vx_init_locked(struct vx_softc *sc)
 	    S_RX_COMPLETE | S_TX_COMPLETE | S_TX_AVAIL);
 
 	/*
-         * Attempt to get rid of any stray interrupts that occured during
+         * Attempt to get rid of any stray interrupts that occurred during
          * configuration.  On the i386 this isn't possible because one may
          * already be queued.  However, a single stray interrupt is
          * unimportant.
@@ -752,7 +752,7 @@ again:
 	eh = mtod(m, struct ether_header *);
 
 	/*
-         * XXX: Some cards seem to be in promiscous mode all the time.
+         * XXX: Some cards seem to be in promiscuous mode all the time.
          * we need to make sure we only get our own stuff always.
          * bleah!
          */
diff --git a/sys/dev/vx/if_vx_eisa.c b/sys/dev/vx/if_vx_eisa.c
index b05c8e1ab539..2556580c1e5c 100644
--- a/sys/dev/vx/if_vx_eisa.c
+++ b/sys/dev/vx/if_vx_eisa.c
@@ -149,7 +149,7 @@ vx_eisa_attach(device_t dev)
 	}
 	sc->vx_irq = irq;
 
-	/* Now the registers are availible through the lower ioport */
+	/* Now the registers are available through the lower ioport */
 
 	if (vx_attach(dev) == 0)
 		goto bad;
diff --git a/sys/dev/vxge/include/vxge-queue.h b/sys/dev/vxge/include/vxge-queue.h
index 2ff5e220b4a6..4745403f2cc0 100644
--- a/sys/dev/vxge/include/vxge-queue.h
+++ b/sys/dev/vxge/include/vxge-queue.h
@@ -103,7 +103,7 @@ typedef void (*vxge_queued_f) (void *data, u32 event_type);
  *	   produce/consume operations.
  * @tail_ptr: Points to the tail of the queue. It gets changed during queue
  *	   produce/consume operations.
- * @lock: Lock for queue operations(syncronization purpose).
+ * @lock: Lock for queue operations(synchronization purpose).
  * @pages_initial:Number of pages to be initially allocated at the time
  *		 of queue creation.
  * @pages_max: Max number of pages that can be allocated in the queue.
@@ -235,7 +235,7 @@ vxge_queue_produce(vxge_queue_h queueh,
  * Returns: VXGE_QUEUE_OK - success.
  * VXGE_QUEUE_IS_EMPTY - Queue is empty.
  * VXGE_QUEUE_NOT_ENOUGH_SPACE - Requested item size(@data_max_size)
- * is too small to accomodate an item from the queue.
+ * is too small to accommodate an item from the queue.
  *
  * See also: vxge_queue_item_t {}, vxge_queue_produce().
  */
@@ -261,7 +261,7 @@ vxge_queue_produce_context(vxge_queue_h queueh,
  * Returns: VXGE_QUEUE_OK - success.
  * VXGE_QUEUE_IS_EMPTY - Queue is empty.
  * VXGE_QUEUE_NOT_ENOUGH_SPACE - Requested item size(@data_max_size)
- * is too small to accomodate an item from the queue.
+ * is too small to accommodate an item from the queue.
  *
  * See also: vxge_queue_item_t {}, vxge_queue_produce().
  */
@@ -285,7 +285,7 @@ vxge_queue_flush(vxge_queue_h queueh);
  * @queueh: Queue handle.
  *
  * This function is called in the case of no slot avaialble in the queue
- * to accomodate the newly received event.
+ * to accommodate the newly received event.
  * Note that queue cannot grow beyond the max size specified for the
  * queue.
  *
diff --git a/sys/dev/vxge/include/vxgehal-ll.h b/sys/dev/vxge/include/vxgehal-ll.h
index 5c65cc1d4c5d..7e034485721f 100644
--- a/sys/dev/vxge/include/vxgehal-ll.h
+++ b/sys/dev/vxge/include/vxgehal-ll.h
@@ -2451,7 +2451,7 @@ void vxge_hal_fifo_txdl_cksum_set_bits(
 /*
  * vxge_hal_fifo_txdl_interrupt_type_set - Set the interrupt type for the txdl
  * @txdlh: Descriptor handle.
- * @interrupt_type: utiliz based interupt or List interrupt
+ * @interrupt_type: utiliz based interrupt or List interrupt
  *
  * vxge_hal_fifo_txdl_interrupt_type_set is used to set the interrupt type for
  * each xmit txdl dynamically
@@ -2639,7 +2639,7 @@ vxge_hal_fifo_txdl_buffer_append(
  * @txdlh: Descriptor handle.
  * @frag_idx: Index of the data buffer in the Txdl list.
  *
- * This API in conjuction with vxge_hal_fifo_txdl_buffer_append() prepares
+ * This API in conjunction with vxge_hal_fifo_txdl_buffer_append() prepares
  * a descriptor that consists of a single physically contiguous buffer
  * which inturn contains the contents of one or more virtually contiguous
  * buffers received from the upper layer.
@@ -3950,7 +3950,7 @@ void
  * @read_length: Size of the valid data in the buffer.
  *
  * Read  HAL trace buffer contents starting from the offset
- * upto the size of the buffer or till EOF is reached.
+ * up to the size of the buffer or till EOF is reached.
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_EOF_TRACE_BUF - No more data in the trace buffer.
@@ -5109,7 +5109,7 @@ vxge_hal_vpath_rts_rth_get(
  *
  * @vpath_handle: Virtual Path ahandle.
  * @KeySize: Number of 64-bit words
- * @Key: upto 40-byte array of 64-bit values
+ * @Key: up to 40-byte array of 64-bit values
  * This function configures the 40-byte secret which is used for hash
  * calculation.
  *
@@ -5633,7 +5633,7 @@ vxge_hal_vpath_rpa_set(
  * vxge_hal_vpath_poll_rx - Poll Rx	od Virtual Path	for completed
  *			 descriptors and process the same.
  * @vpath_handle: Virtual Path ahandle.
- * @got_rx: Buffer to return the flag set if receive interrupt is occured
+ * @got_rx: Buffer to return the flag set if receive interrupt is occurred
  *
  * The function	polls the Rx for the completed	descriptors and	calls
  * the upper-layer driver (ULD)	via supplied completion	callback.
@@ -5653,7 +5653,7 @@ vxge_hal_vpath_poll_rx(
  * vxge_hal_vpath_poll_tx - Poll Tx	for completed descriptors and process
  *			 the same.
  * @vpath_handle: Virtual Path ahandle.
- * @got_tx: Buffer to return the flag set if transmit interrupt is occured
+ * @got_tx: Buffer to return the flag set if transmit interrupt is occurred
  *
  * The function	polls the Tx for the completed	descriptors and	calls
  * the upper-layer driver (ULD)	via supplied completion callback.
diff --git a/sys/dev/vxge/include/vxgehal-mgmt.h b/sys/dev/vxge/include/vxgehal-mgmt.h
index 682e81ed8891..effc9ab0a1cf 100644
--- a/sys/dev/vxge/include/vxgehal-mgmt.h
+++ b/sys/dev/vxge/include/vxgehal-mgmt.h
@@ -87,7 +87,7 @@ typedef struct vxge_hal_mgmt_about_info_t {
  *
  * Returns: VXGE_HAL_OK - success;
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  * VXGE_HAL_FAIL - Failed to retrieve the information.
  *
@@ -111,7 +111,7 @@ vxge_hal_mgmt_about(vxge_hal_device_h devh,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  */
@@ -122,7 +122,7 @@ vxge_hal_mgmt_pci_config(vxge_hal_device_h devh, u8 *buffer, u32 *size);
  * struct vxge_hal_mgmt_pm_cap_t - Power Management Capabilities
  * @pm_cap_ver: Version
  * @pm_cap_pme_clock: PME clock required
- * @pm_cap_aux_power: Auxilliary power support
+ * @pm_cap_aux_power: Auxiliary power support
  * @pm_cap_dsi: Device specific initialization
  * @pm_cap_aux_current: auxiliary current requirements
  * @pm_cap_cap_d0: D1 power state support
@@ -412,7 +412,7 @@ vxge_hal_mgmt_pci_err_capabilities_get(vxge_hal_device_h devh,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_DRIVER_NOT_INITIALIZED - HAL is not initialized.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version is not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version is not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  * See also: vxge_hal_driver_config_t {}, vxge_hal_mgmt_device_config().
@@ -430,7 +430,7 @@ vxge_hal_mgmt_driver_config(vxge_hal_driver_config_t *drv_config, u32 *size);
  * @read_length: Size of the valid data in the buffer.
  *
  * Read  HAL trace buffer contents starting from the offset
- * upto the size of the buffer or till EOF is reached.
+ * up to the size of the buffer or till EOF is reached.
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_EOF_TRACE_BUF - No more data in the trace buffer.
@@ -457,7 +457,7 @@ vxge_hal_mgmt_trace_read(char *buffer,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  * See also: vxge_hal_device_config_t {}, vxge_hal_mgmt_driver_config().
diff --git a/sys/dev/vxge/include/vxgehal-mgmtaux.h b/sys/dev/vxge/include/vxgehal-mgmtaux.h
index 6eba36abc0ac..8ded696d2a75 100644
--- a/sys/dev/vxge/include/vxgehal-mgmtaux.h
+++ b/sys/dev/vxge/include/vxgehal-mgmtaux.h
@@ -47,7 +47,7 @@ __EXTERN_BEGIN_DECLS
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_FAIL - Failed to retrieve the information.
  *
  * See also: vxge_hal_mgmt_about(), vxge_hal_aux_device_dump().
@@ -64,7 +64,7 @@ vxge_hal_status_e vxge_hal_aux_about_read(vxge_hal_device_h devh, int bufsize,
  * Read driver configuration,
  *
  * Returns: VXGE_HAL_OK - success.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_aux_device_config_read().
  */
@@ -84,7 +84,7 @@ vxge_hal_aux_driver_config_read(int bufsize, char *retbuf, int *retsize);
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_mgmt_pci_config(), vxge_hal_aux_device_dump().
  */
@@ -105,7 +105,7 @@ vxge_hal_aux_pci_config_read(vxge_hal_device_h devh,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_aux_driver_config_read().
  */
diff --git a/sys/dev/vxge/include/vxgehal-stats.h b/sys/dev/vxge/include/vxgehal-stats.h
index 3697471fc929..9dae119540a9 100644
--- a/sys/dev/vxge/include/vxgehal-stats.h
+++ b/sys/dev/vxge/include/vxgehal-stats.h
@@ -925,7 +925,7 @@ typedef struct vxge_hal_xmac_aggr_stats_t {
  * @rx_red_discard: Count of received frames that are discarded because of RED
  *	   (Random Early Discard).
  * @rx_xgmii_ctrl_err_cnt: Maintains a count of unexpected or misplaced control
- *	   characters occuring between times of normal data transmission
+ *	   characters occurring between times of normal data transmission
  *	   (i.e. not included in RX_XGMII_DATA_ERR_CNT). This counter is
  *	   incremented when either -
  *	   1) The Reconciliation Sublayer (RS) is expecting one control
diff --git a/sys/dev/vxge/vxgehal/vxge-queue.c b/sys/dev/vxge/vxgehal/vxge-queue.c
index 5cf433e53156..c2a2b5aa19cb 100644
--- a/sys/dev/vxge/vxgehal/vxge-queue.c
+++ b/sys/dev/vxge/vxgehal/vxge-queue.c
@@ -392,7 +392,7 @@ vxge_queue_destroy(vxge_queue_h queueh)
  * @queueh: Queue handle.
  *
  * This function is called in the case of no slot avaialble in the queue
- * to accomodate the newly received event.
+ * to accommodate the newly received event.
  * Note that queue cannot grow beyond the max size specified for the
  * queue.
  *
@@ -488,7 +488,7 @@ vxge_io_queue_grow(vxge_queue_h queueh)
  * Returns: VXGE_QUEUE_OK - success.
  * VXGE_QUEUE_IS_EMPTY - Queue is empty.
  * VXGE_QUEUE_NOT_ENOUGH_SPACE - Requested item size(@data_max_size)
- * is too small to accomodate an item from the queue.
+ * is too small to accommodate an item from the queue.
  *
  * See also: vxge_queue_item_t {}, vxge_queue_produce().
  */
diff --git a/sys/dev/vxge/vxgehal/vxgehal-device.c b/sys/dev/vxge/vxgehal/vxgehal-device.c
index 2e77f1ec7740..faa5f79308d8 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-device.c
+++ b/sys/dev/vxge/vxgehal/vxgehal-device.c
@@ -3395,7 +3395,7 @@ vxge_hal_device_trace_dump(vxge_hal_device_h devh)
  * @read_length: Size of the valid data in the buffer.
  *
  * Read  HAL trace buffer contents starting from the offset
- * upto the size of the buffer or till EOF is reached.
+ * up to the size of the buffer or till EOF is reached.
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_EOF_TRACE_BUF - No more data in the trace buffer.
diff --git a/sys/dev/vxge/vxgehal/vxgehal-fifo.c b/sys/dev/vxge/vxgehal/vxgehal-fifo.c
index 771f88079978..30dfa3d5557b 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-fifo.c
+++ b/sys/dev/vxge/vxgehal/vxgehal-fifo.c
@@ -384,7 +384,7 @@ __hal_fifo_create(
 	 * demand with the size which will fit into one memory block.
 	 * One memory block may contain more than one TxDL. In simple case
 	 * memory block size can be equal to CPU page size. On more
-	 * sophisticated OS's memory block can be contigious across
+	 * sophisticated OS's memory block can be contiguous across
 	 * several pages.
 	 *
 	 * During "reserve" operations more memory can be allocated on demand
@@ -1191,7 +1191,7 @@ vxge_hal_fifo_txdl_buffer_append(
  * @txdlh: Descriptor handle.
  * @frag_idx: Index of the data buffer in the Txdl list.
  *
- * This API in conjuction with vxge_hal_fifo_txdl_buffer_append() prepares
+ * This API in conjunction with vxge_hal_fifo_txdl_buffer_append() prepares
  * a descriptor that consists of a single physically contiguous buffer
  * which inturn contains the contents of one or more virtually contiguous
  * buffers received from the upper layer.
diff --git a/sys/dev/vxge/vxgehal/vxgehal-mgmt.c b/sys/dev/vxge/vxgehal/vxgehal-mgmt.c
index 3e1a25afb0a2..c58ddb29ca92 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-mgmt.c
+++ b/sys/dev/vxge/vxgehal/vxgehal-mgmt.c
@@ -45,7 +45,7 @@
  *
  * Returns: VXGE_HAL_OK - success;
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  * VXGE_HAL_FAIL - Failed to retrieve the information.
  *
@@ -136,7 +136,7 @@ vxge_hal_mgmt_about(vxge_hal_device_h devh,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  */
@@ -916,7 +916,7 @@ vxge_hal_mgmt_pci_err_capabilities_get(vxge_hal_device_h devh,
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_DRIVER_NOT_INITIALIZED - HAL is not initialized.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version is not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version is not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  * See also: vxge_hal_driver_config_t {}, vxge_hal_mgmt_device_config().
@@ -974,7 +974,7 @@ vxge_hal_mgmt_driver_config(vxge_hal_driver_config_t *drv_config, u32 *size)
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_ERR_OUT_OF_SPACE - If the buffer is not sufficient
  *
  * See also: vxge_hal_device_config_t {}, vxge_hal_mgmt_driver_config().
diff --git a/sys/dev/vxge/vxgehal/vxgehal-mgmtaux.c b/sys/dev/vxge/vxgehal/vxgehal-mgmtaux.c
index e294e7eb127d..995cbc7073f4 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-mgmtaux.c
+++ b/sys/dev/vxge/vxgehal/vxgehal-mgmtaux.c
@@ -82,7 +82,7 @@
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  * VXGE_HAL_FAIL - Failed to retrieve the information.
  *
  * See also: vxge_hal_mgmt_about(), vxge_hal_aux_device_dump().
@@ -132,7 +132,7 @@ vxge_hal_aux_about_read(vxge_hal_device_h devh, int bufsize,
  * Read driver configuration,
  *
  * Returns: VXGE_HAL_OK - success.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_aux_device_config_read().
  */
@@ -169,7 +169,7 @@ vxge_hal_aux_driver_config_read(int bufsize, char *retbuf, int *retsize)
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_mgmt_pci_config(), vxge_hal_aux_device_dump().
  */
@@ -463,7 +463,7 @@ vxge_hal_aux_pci_config_read(
  *
  * Returns: VXGE_HAL_OK - success.
  * VXGE_HAL_ERR_INVALID_DEVICE - Device is not valid.
- * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not maching.
+ * VXGE_HAL_ERR_VERSION_CONFLICT - Version it not matching.
  *
  * See also: vxge_hal_aux_driver_config_read().
  */
diff --git a/sys/dev/vxge/vxgehal/vxgehal-regs.h b/sys/dev/vxge/vxgehal/vxgehal-regs.h
index 52cef7420706..a18e97b0ffa0 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-regs.h
+++ b/sys/dev/vxge/vxgehal/vxgehal-regs.h
@@ -200,7 +200,7 @@ typedef struct vxge_hal_pm_capability_le_t {
 	u16	capabilities_reg;
 #define	VXGE_HAL_PCI_PM_CAP_VER_MASK	0x0007	/* Version */
 #define	VXGE_HAL_PCI_PM_CAP_PME_CLOCK	0x0008	/* PME clock required */
-#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER	0x0010	/* Auxilliary power support */
+#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER	0x0010	/* Auxiliary power support */
 #define	VXGE_HAL_PCI_PM_CAP_DSI		0x0020	/* Device specific init */
 #define	VXGE_HAL_PCI_PM_AUX_CURRENT	0x01C0	/* Auxiliary current reqs */
 #define	VXGE_HAL_PCI_PM_CAP_D1		0x0200	/* D1 power state support */
@@ -228,7 +228,7 @@ typedef struct vxge_hal_pm_capability_t {
 	u16	capabilities_reg;
 #define	VXGE_HAL_PCI_PM_CAP_VER_MASK	0x0007	/* Version */
 #define	VXGE_HAL_PCI_PM_CAP_PME_CLOCK   0x0008	/* PME clock required */
-#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER   0x0010	/* Auxilliary power support */
+#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER   0x0010	/* Auxiliary power support */
 #define	VXGE_HAL_PCI_PM_CAP_DSI		0x0020	/* Dev specific init */
 #define	VXGE_HAL_PCI_PM_AUX_CURRENT	0x01C0	/* Auxiliary current reqs */
 #define	VXGE_HAL_PCI_PM_CAP_D1		0x0200	/* D1 power state support */
@@ -257,7 +257,7 @@ typedef struct vxge_hal_pm_capability_t {
 	u16	capabilities_reg;
 #define	VXGE_HAL_PCI_PM_CAP_VER_MASK	0x0007	/* Version */
 #define	VXGE_HAL_PCI_PM_CAP_PME_CLOCK   0x0008	/* PME clock required */
-#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER   0x0010	/* Auxilliary power support */
+#define	VXGE_HAL_PCI_PM_CAP_AUX_POWER   0x0010	/* Auxiliary power support */
 #define	VXGE_HAL_PCI_PM_CAP_DSI		0x0020	/* Dev specific init */
 #define	VXGE_HAL_PCI_PM_AUX_CURRENT	0x01C0	/* Auxiliary curr reqs */
 #define	VXGE_HAL_PCI_PM_CAP_D1		0x0200	/* D1 power state support */
diff --git a/sys/dev/vxge/vxgehal/vxgehal-virtualpath.c b/sys/dev/vxge/vxgehal/vxgehal-virtualpath.c
index ac51b9763195..c4067e984a5a 100644
--- a/sys/dev/vxge/vxgehal/vxgehal-virtualpath.c
+++ b/sys/dev/vxge/vxgehal/vxgehal-virtualpath.c
@@ -2899,7 +2899,7 @@ vxge_hal_vpath_rts_rth_get(vxge_hal_vpath_h vpath_handle,
  *
  * @vpath_handle: Virtual Path ahandle.
  * @KeySize: Number of 64-bit words
- * @Key: upto 40-byte array of 64-bit values
+ * @Key: up to 40-byte array of 64-bit values
  * This function configures the 40-byte secret which is used for hash
  * calculation.
  *
@@ -7532,7 +7532,7 @@ vxge_hal_vpath_msix_unmask_all(vxge_hal_vpath_h vpath_handle)
  * vxge_hal_vpath_poll_rx - Poll Rx Virtual Path for completed
  *			descriptors and process the same.
  * @vpath_handle: Virtual Path ahandle.
- * @got_rx: Buffer to return the flag set if receive interrupt is occured
+ * @got_rx: Buffer to return the flag set if receive interrupt is occurred
  *
  * The function	polls the Rx for the completed	descriptors and	calls
  * the upper-layer driver (ULD)	via supplied completion	callback.
@@ -7597,7 +7597,7 @@ vxge_hal_vpath_poll_rx(vxge_hal_vpath_h vpath_handle, u32 *got_rx)
  * vxge_hal_vpath_poll_tx - Poll Tx for completed descriptors and process
  *			the same.
  * @vpath_handle: Virtual Path ahandle.
- * @got_tx: Buffer to return the flag set if transmit interrupt is occured
+ * @got_tx: Buffer to return the flag set if transmit interrupt is occurred
  *
  * The function	polls the Tx for the completed	descriptors and	calls
  * the upper-layer driver (ULD)	via supplied completion callback.
diff --git a/sys/dev/wi/if_wavelan_ieee.h b/sys/dev/wi/if_wavelan_ieee.h
index 0061e638bd0d..c2a8e1b2fd46 100644
--- a/sys/dev/wi/if_wavelan_ieee.h
+++ b/sys/dev/wi/if_wavelan_ieee.h
@@ -431,7 +431,7 @@ struct wi_apinfo {
  */
 
 /*
- * standard hermes recieve frame used by wavelan/prism2 cards
+ * standard hermes receive frame used by wavelan/prism2 cards
  */
 struct wi_rx_frame {
 	/*
diff --git a/sys/dev/wi/if_wi.c b/sys/dev/wi/if_wi.c
index 632bd76ffcc5..19876e1bf6ed 100644
--- a/sys/dev/wi/if_wi.c
+++ b/sys/dev/wi/if_wi.c
@@ -46,7 +46,7 @@
  * without an NDA (if at all). What they do release is an API library
  * called the HCF (Hardware Control Functions) which is supposed to
  * do the device-specific operations of a device driver for you. The
- * publically available version of the HCF library (the 'HCF Light') is 
+ * publicly available version of the HCF library (the 'HCF Light') is 
  * a) extremely gross, b) lacks certain features, particularly support
  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  *
diff --git a/sys/dev/wi/if_wireg.h b/sys/dev/wi/if_wireg.h
index d99e597c042a..d5e12cabe514 100644
--- a/sys/dev/wi/if_wireg.h
+++ b/sys/dev/wi/if_wireg.h
@@ -157,7 +157,7 @@
  * - Lucent has created a library called HCF (Hardware Control Functions)
  *   though which it wants developers to interact with the card. The HCF
  *   is needlessly complex, ill conceived and badly documented. Actually,
- *   the comments in the HCP code itself aren't bad, but the publically
+ *   the comments in the HCP code itself aren't bad, but the publicly
  *   available manual that comes with it is awful, probably due largely to
  *   the fact that it has been emasculated in order to hide information
  *   that Lucent wants to keep proprietary. The purpose of the HCF seems
@@ -295,7 +295,7 @@
 #define WI_EV_CMD		0x0010	/* command completed */
 #define WI_EV_ALLOC		0x0008	/* async alloc/reclaim completed */
 #define WI_EV_TX_EXC		0x0004	/* async xmit completed with failure */
-#define WI_EV_TX		0x0002	/* async xmit completed succesfully */
+#define	WI_EV_TX		0x0002	/* async xmit completed successfully */
 #define WI_EV_RX		0x0001	/* async rx completed */
 
 /* Host software registers */
diff --git a/sys/dev/wl/if_wl.c b/sys/dev/wl/if_wl.c
index 6414d335dd33..08d0fc87c771 100644
--- a/sys/dev/wl/if_wl.c
+++ b/sys/dev/wl/if_wl.c
@@ -1252,7 +1252,7 @@ wlioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 	    mode |= MOD_PROM;
 	}
 	/*
-	 * force a complete reset if the recieve multicast/
+	 * force a complete reset if the receive multicast/
 	 * promiscuous mode changes so that these take 
 	 * effect immediately.
 	 *
@@ -1479,11 +1479,11 @@ wlwatchdog(void *vsc)
  *
  *	This function is the interrupt handler for the WaveLAN
  *	board.  This routine will be called whenever either a packet
- *	is received, or a packet has successfully been transfered and
+ *	is received, or a packet has successfully been transferred and
  *	the unit is ready to transmit another packet.
  *
  * input	: board number that interrupted
- * output	: either a packet is received, or a packet is transfered
+ * output	: either a packet is received, or a packet is transferred
  *
  */
 static void
@@ -1500,7 +1500,7 @@ wlintr(void *arg)
 #endif
 
     if ((int_type = WL_READ_2(sc, HASR)) & HASR_MMC_INTR) {
-	/* handle interrupt from the modem management controler */
+	/* handle interrupt from the modem management controller */
 	/* This will clear the interrupt condition */ 
 	(void) wlmmcread(sc, MMC_DCE_STATUS); /* ignored for now */
     }
diff --git a/sys/dev/xe/if_xereg.h b/sys/dev/xe/if_xereg.h
index f3ab4b5c21a4..b81ae6b1f745 100644
--- a/sys/dev/xe/if_xereg.h
+++ b/sys/dev/xe/if_xereg.h
@@ -633,7 +633,7 @@
 #define PHY_BMSR		0x01	/* Basic Mode Status Register */
 #define	PHY_ID1			0x02	/* PHY ID 1 */
 #define	PHY_ID2			0x03	/* PHY ID 2 */
-#define PHY_ANAR		0x04	/* Auto-Negotiation Advertisment Register */
+#define	PHY_ANAR		0x04	/* Auto-Negotiation Advertisement Register */
 #define PHY_LPAR		0x05	/* Auto-Negotiation Link Partner Ability Register */
 #define PHY_ANER		0x06	/* Auto-Negotiation Expansion Register */
 
diff --git a/sys/dev/xen/balloon/balloon.c b/sys/dev/xen/balloon/balloon.c
index e54e39cb8b47..aefa5cdb9250 100644
--- a/sys/dev/xen/balloon/balloon.c
+++ b/sys/dev/xen/balloon/balloon.c
@@ -353,7 +353,7 @@ xenballoon_identify(driver_t *driver __unused, device_t parent)
 }
 
 /**
- * \brief Probe for the existance of the Xen Balloon device
+ * \brief Probe for the existence of the Xen Balloon device
  *
  * \param dev  NewBus device_t for this Xen control instance.
  *
diff --git a/sys/dev/xen/blkback/blkback.c b/sys/dev/xen/blkback/blkback.c
index a97314be4b2a..97068a137c36 100644
--- a/sys/dev/xen/blkback/blkback.c
+++ b/sys/dev/xen/blkback/blkback.c
@@ -619,7 +619,7 @@ struct xbb_softc {
 	 * There are situations where the back and front ends can
 	 * have a different, native abi (e.g. intel x86_64 and
 	 * 32bit x86 domains on the same machine).  The back-end
-	 * always accomodates the front-end's native abi.  That
+	 * always accommodates the front-end's native abi.  That
 	 * value is pulled from the XenStore and recorded here.
 	 */
 	int			  abi;
@@ -788,13 +788,13 @@ struct xbb_softc {
 	/** Number of requests we completed with an error status*/
 	uint64_t		  reqs_completed_with_error;
 
-	/** How many forced dispatches (i.e. without coalescing) have happend */
+	/** How many forced dispatches (i.e. without coalescing) have happened */
 	uint64_t		  forced_dispatch;
 
-	/** How many normal dispatches have happend */
+	/** How many normal dispatches have happened */
 	uint64_t		  normal_dispatch;
 
-	/** How many total dispatches have happend */
+	/** How many total dispatches have happened */
 	uint64_t		  total_dispatch;
 
 	/** How many times we have run out of KVA */
@@ -1957,7 +1957,7 @@ xbb_run_queue(void *context, int pending)
 			 * we've already consumed all necessary data out
 			 * of the version of the request in the ring buffer
 			 * (for native mode).  We must update the consumer
-			 * index  before issueing back-end I/O so there is
+			 * index  before issuing back-end I/O so there is
 			 * no possibility that it will complete and a
 			 * response be generated before we make room in 
 			 * the queue for that response.
@@ -3062,7 +3062,7 @@ xbb_collect_frontend_info(struct xbb_softc *xbb)
 	 * and the new value is outside of its allowed range.
 	 *
 	 * \note xs_gather() returns on the first encountered error, so
-	 *       we must use independant calls in order to guarantee
+	 *       we must use independent calls in order to guarantee
 	 *       we don't miss information in a sparsly populated front-end
 	 *       tree.
 	 *
@@ -3739,7 +3739,7 @@ xbb_attach(device_t dev)
  * 
  * \note A block back device may be detached at any time in its life-cycle,
  *       including part way through the attach process.  For this reason,
- *       initialization order and the intialization state checks in this
+ *       initialization order and the initialization state checks in this
  *       routine must be carefully coupled so that attach time failures
  *       are gracefully handled.
  */
diff --git a/sys/dev/xen/blkfront/blkfront.c b/sys/dev/xen/blkfront/blkfront.c
index ef36b94cf7e6..4de58840341a 100644
--- a/sys/dev/xen/blkfront/blkfront.c
+++ b/sys/dev/xen/blkfront/blkfront.c
@@ -571,7 +571,7 @@ xbd_quiesce(struct xbd_softc *sc)
 	while (xbd_queue_length(sc, XBD_Q_BUSY) != 0) {
 		RING_FINAL_CHECK_FOR_RESPONSES(&sc->xbd_ring, mtd);
 		if (mtd) {
-			/* Recieved request completions, update queue. */
+			/* Received request completions, update queue. */
 			xbd_int(sc);
 		}
 		if (xbd_queue_length(sc, XBD_Q_BUSY) != 0) {
@@ -1118,7 +1118,7 @@ xbd_initialize(struct xbd_softc *sc)
 	 * Protocol negotiation.
 	 *
 	 * \note xs_gather() returns on the first encountered error, so
-	 *       we must use independant calls in order to guarantee
+	 *       we must use independent calls in order to guarantee
 	 *       we don't miss information in a sparsly populated back-end
 	 *       tree.
 	 *
diff --git a/sys/dev/xen/blkfront/block.h b/sys/dev/xen/blkfront/block.h
index ddb4088b19db..b48139659b51 100644
--- a/sys/dev/xen/blkfront/block.h
+++ b/sys/dev/xen/blkfront/block.h
@@ -160,7 +160,7 @@ typedef enum {
 	XBDF_CM_SHORTAGE  = 1 << 4, /* Free cm resource shortage active. */
 	XBDF_GNT_SHORTAGE = 1 << 5, /* Grant ref resource shortage active */
 	XBDF_WAIT_IDLE	  = 1 << 6,  /*
-				     * No new work until oustanding work
+				     * No new work until outstanding work
 				     * completes.
 				     */
 	XBDF_DISCARD	  = 1 << 7, /* backend supports discard */
diff --git a/sys/dev/xen/control/control.c b/sys/dev/xen/control/control.c
index 5e00bebfeb57..8cf59694d1c7 100644
--- a/sys/dev/xen/control/control.c
+++ b/sys/dev/xen/control/control.c
@@ -368,7 +368,7 @@ xctrl_identify(driver_t *driver __unused, device_t parent)
 }
 
 /**
- * \brief Probe for the existance of the Xen Control device
+ * \brief Probe for the existence of the Xen Control device
  *
  * \param dev  NewBus device_t for this Xen control instance.
  *
diff --git a/sys/dev/xen/netback/netback.c b/sys/dev/xen/netback/netback.c
index 4b4fdb92bf15..aa5ce6e719b1 100644
--- a/sys/dev/xen/netback/netback.c
+++ b/sys/dev/xen/netback/netback.c
@@ -416,7 +416,7 @@ struct xnb_softc {
 	 * There are situations where the back and front ends can
 	 * have a different, native abi (e.g. intel x86_64 and
 	 * 32bit x86 domains on the same machine).  The back-end
-	 * always accomodates the front-end's native abi.  That
+	 * always accommodates the front-end's native abi.  That
 	 * value is pulled from the XenStore and recorded here.
 	 */
 	int			abi;
@@ -1327,7 +1327,7 @@ xnb_attach(device_t dev)
  *
  * \note A net back device may be detached at any time in its life-cycle,
  *       including part way through the attach process.  For this reason,
- *       initialization order and the intialization state checks in this
+ *       initialization order and the initialization state checks in this
  *       routine must be carefully coupled so that attach time failures
  *       are gracefully handled.
  */
diff --git a/sys/dev/xen/netback/netback_unit_tests.c b/sys/dev/xen/netback/netback_unit_tests.c
index 390f9f782f86..db94217993fb 100644
--- a/sys/dev/xen/netback/netback_unit_tests.c
+++ b/sys/dev/xen/netback/netback_unit_tests.c
@@ -98,7 +98,7 @@ struct test_fixture {
 	/** Will be run if setup succeeds */
 	testcase_t *test;
 
-	/** Cleans up test data whether or not the setup suceeded*/
+	/** Cleans up test data whether or not the setup succeeded */
 	teardown_t *teardown;
 };
 
diff --git a/sys/dev/xen/xenstore/xenstore.c b/sys/dev/xen/xenstore/xenstore.c
index f3df97dbed6b..4f89b7457d0e 100644
--- a/sys/dev/xen/xenstore/xenstore.c
+++ b/sys/dev/xen/xenstore/xenstore.c
@@ -79,7 +79,7 @@ __FBSDID("$FreeBSD$");
  *
  * The XenStore is ASCII string based, and has a structure and semantics
  * similar to a filesystem.  There are files and directories, the directories
- * able to contain files or other directories.  The depth of the hierachy
+ * able to contain files or other directories.  The depth of the hierarchy
  * is only limited by the XenStore's maximum path length.
  *
  * The communication channel between the XenStore service and other
@@ -1110,7 +1110,7 @@ xs_identify(driver_t *driver, device_t parent)
 }
 
 /**
- * Probe for the existance of the XenStore.
+ * Probe for the existence of the XenStore.
  *
  * \param dev
  */
diff --git a/sys/dev/xen/xenstore/xenstore_dev.c b/sys/dev/xen/xenstore/xenstore_dev.c
index 80396fddd3b4..ce62140cfbb4 100644
--- a/sys/dev/xen/xenstore/xenstore_dev.c
+++ b/sys/dev/xen/xenstore/xenstore_dev.c
@@ -241,7 +241,7 @@ xs_dev_identify(driver_t *driver __unused, device_t parent)
 }
 
 /**
- * \brief Probe for the existance of the Xenstore device
+ * \brief Probe for the existence of the Xenstore device
  *
  * \param dev  NewBus device_t for this instance.
  *
diff --git a/sys/dev/xl/if_xl.c b/sys/dev/xl/if_xl.c
index 9568967d609b..e82fe1c0228e 100644
--- a/sys/dev/xl/if_xl.c
+++ b/sys/dev/xl/if_xl.c
@@ -75,7 +75,7 @@ __FBSDID("$FreeBSD$");
  * Columbia University, New York City
  */
 /*
- * The 3c90x series chips use a bus-master DMA interface for transfering
+ * The 3c90x series chips use a bus-master DMA interface for transferring
  * packets to and from the controller chip. Some of the "vortex" cards
  * (3c59x) also supported a bus master mode, however for those chips
  * you could only DMA packets to/from a contiguous memory buffer. For