Machine generated patch which changes linedisc calls from accessing

linesw[] directly to using the ttyld...() functions

The ttyld...() functions ar inline so there is no performance hit.

25 files changed, 168 insertions, 168 deletions

diff --git a/sys/alpha/alpha/promcons.c b/sys/alpha/alpha/promcons.c
index c968d28992fc..3a127ead0490 100644
--- a/sys/alpha/alpha/promcons.c
+++ b/sys/alpha/alpha/promcons.c
@@ -124,7 +124,7 @@ promopen(dev, flag, mode, td)
 
 	splx(s);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	if (error == 0 && setuptimeout) {
 		polltime = hz / PROM_POLL_HZ;
@@ -148,7 +148,7 @@ promclose(dev, flag, mode, td)
 		return ENXIO;
 
 	untimeout(promtimeout, tp, promtimeouthandle);
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	ttyclose(tp);
 	return 0;
 }
@@ -211,7 +211,7 @@ promtimeout(v)
 
 	while ((c = promcncheckc(NULL)) != -1) {
 		if (tp->t_state & TS_ISOPEN)
-			(*linesw[tp->t_line].l_rint)(c, tp);
+			ttyld_rint(tp, c);
 	}
 	promtimeouthandle = timeout(promtimeout, tp, polltime);
 }
diff --git a/sys/alpha/tlsb/zs_tlsb.c b/sys/alpha/tlsb/zs_tlsb.c
index 59d989c11532..1387f9713949 100644
--- a/sys/alpha/tlsb/zs_tlsb.c
+++ b/sys/alpha/tlsb/zs_tlsb.c
@@ -291,7 +291,7 @@ zsopen(dev_t dev, int flag, int mode, struct thread *td)
 
 	splx(s);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	if (error == 0 && setuptimeout) {
 		zspolltime = hz / 50;
@@ -318,7 +318,7 @@ zsclose(dev_t dev, int flag, int mode, struct thread *td)
 
 	s = spltty();
 	untimeout(zs_poll_intr, sc, sc->zst);
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	ttyclose(tp);
 	splx(s);
 
@@ -502,7 +502,7 @@ zsc_tlsb_intr(void *arg)
 				Debugger("manual escape to debugger");
 #endif
 			if (tp && (tp->t_state & TS_ISOPEN))
-				(*linesw[tp->t_line].l_rint)(c, tp);
+				ttyld_rint(tp, c);
 			DELAY(5);
 		}
 	}
@@ -517,7 +517,7 @@ zsc_tlsb_intr(void *arg)
 				Debugger("manual escape to debugger");
 #endif
 			if (tp && (tp->t_state & TS_ISOPEN))
-				(*linesw[tp->t_line].l_rint)(c, tp);
+				ttyld_rint(tp, c);
 			DELAY(5);
 		}
 	}
diff --git a/sys/dev/cy/cy.c b/sys/dev/cy/cy.c
index c6e72205f9d8..8e1a56cdc1c7 100644
--- a/sys/dev/cy/cy.c
+++ b/sys/dev/cy/cy.c
@@ -748,7 +748,7 @@ open_top:
 		 * the true carrier.
 		 */
 		if (com->prev_modem_status & MSR_DCD || mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 	}
 	/*
 	 * Wait for DCD if necessary.
@@ -762,7 +762,7 @@ open_top:
 			goto out;
 		goto open_top;
 	}
-	error =	(*linesw[tp->t_line].l_open)(dev, tp);
+	error =	ttyld_open(tp, dev);
 	disc_optim(tp, &tp->t_termios, com);
 	if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
 		com->active_out = TRUE;
@@ -793,7 +793,7 @@ sioclose(dev, flag, mode, td)
 	tp = com->tp;
 	s = spltty();
 	cd_etc(com, CD1400_ETC_STOPBREAK);
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	disc_optim(tp, &tp->t_termios, com);
 	comhardclose(com);
 	ttyclose(tp);
@@ -919,7 +919,7 @@ siowrite(dev, uio, flag)
 	 * sessions are raw anyhow.
 	 */
 #else
-	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
+	return (ttyld_write(tp, uio, flag));
 #endif
 }
 
@@ -1018,7 +1018,7 @@ sioinput(com)
 				if (line_status & LSR_PE)
 					recv_data |= TTY_PE;
 			}
-			(*linesw[tp->t_line].l_rint)(recv_data, tp);
+			ttyld_rint(tp, recv_data);
 			critical_enter();
 			COM_LOCK();
 		} while (buf < com->iptr);
@@ -1772,7 +1772,7 @@ repeat:
 			com->state &= ~CS_ODONE;
 			COM_UNLOCK();
 			critical_exit();
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 		}
 		if (com_events == 0)
 			break;
diff --git a/sys/dev/dcons/dcons.c b/sys/dev/dcons/dcons.c
index 173446623d53..3a5e302c7843 100644
--- a/sys/dev/dcons/dcons.c
+++ b/sys/dev/dcons/dcons.c
@@ -192,7 +192,7 @@ dcons_open(dev_t dev, int flag, int mode, struct THREAD *td)
 	}
 	splx(s);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	return (error);
 }
@@ -209,7 +209,7 @@ dcons_close(dev_t dev, int flag, int mode, struct THREAD *td)
 
 	tp = dev->si_tty;
 	if (tp->t_state & TS_ISOPEN) {
-		(*linesw[tp->t_line].l_close)(tp, flag);
+		ttyld_close(tp, flag);
 		ttyclose(tp);
 	}
 
@@ -259,7 +259,7 @@ dcons_timeout(void *v)
 		tp = dc->dev->si_tty;
 		while ((c = dcons_checkc(dc)) != -1)
 			if (tp->t_state & TS_ISOPEN)
-				(*linesw[tp->t_line].l_rint)(c, tp);
+				ttyld_rint(tp, c);
 	}
 	polltime = hz / poll_hz;
 	if (polltime < 1)
@@ -560,7 +560,7 @@ dcons_detach(int port)
 
 	if (tp->t_state & TS_ISOPEN) {
 		printf("dcons: still opened\n");
-		(*linesw[tp->t_line].l_close)(tp, 0);
+		ttyld_close(tp, 0);
 		ttyclose(tp);
 	}
 	/* XXX
diff --git a/sys/dev/digi/digi.c b/sys/dev/digi/digi.c
index 06d8d18a4fc2..122fc2f7bd8b 100644
--- a/sys/dev/digi/digi.c
+++ b/sys/dev/digi/digi.c
@@ -832,7 +832,7 @@ open_top:
 		/* handle fake and initial DCD for callout devices */
 
 		if (bc->mstat & port->cd || mynor & CALLOUT_MASK)
-			linesw[tp->t_line].l_modem(tp, 1);
+			ttyld_modem(tp, 1);
 	}
 
 	/* Wait for DCD if necessary */
@@ -849,7 +849,7 @@ open_top:
 		}
 		goto open_top;
 	}
-	error = linesw[tp->t_line].l_open(dev, tp);
+	error = ttyld_open(tp, dev);
 	DLOG(DIGIDB_OPEN, (sc->dev, "port %d: l_open error = %d\n",
 	    pnum, error));
 
@@ -900,7 +900,7 @@ digiclose(dev_t dev, int flag, int mode, struct thread *td)
 	DLOG(DIGIDB_CLOSE, (sc->dev, "port %d: closing\n", pnum));
 
 	s = spltty();
-	linesw[tp->t_line].l_close(tp, flag);
+	ttyld_close(tp, flag);
 	digi_disc_optim(tp, &tp->t_termios, port);
 	digihardclose(port);
 	ttyclose(tp);
@@ -970,7 +970,7 @@ digiread(dev_t dev, struct uio *uio, int flag)
 	KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
 	tp = &sc->ttys[pnum];
 
-	error = linesw[tp->t_line].l_read(tp, uio, flag);
+	error = ttyld_read(tp, uio, flag);
 	DLOG(DIGIDB_READ, (sc->dev, "port %d: read() returns %d\n",
 	    pnum, error));
 
@@ -996,7 +996,7 @@ digiwrite(dev_t dev, struct uio *uio, int flag)
 	KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
 	tp = &sc->ttys[pnum];
 
-	error = linesw[tp->t_line].l_write(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 	DLOG(DIGIDB_WRITE, (sc->dev, "port %d: write() returns %d\n",
 	    pnum, error));
 
@@ -1651,26 +1651,26 @@ end_of_data:
 				DLOG(DIGIDB_RI, (sc->dev, "port %d: RING\n",
 				    event.pnum));
 				if (port->send_ring) {
-					linesw[tp->t_line].l_rint('R', tp);
-					linesw[tp->t_line].l_rint('I', tp);
-					linesw[tp->t_line].l_rint('N', tp);
-					linesw[tp->t_line].l_rint('G', tp);
-					linesw[tp->t_line].l_rint('\r', tp);
-					linesw[tp->t_line].l_rint('\n', tp);
+					ttyld_rint(tp, 'R');
+					ttyld_rint(tp, 'I');
+					ttyld_rint(tp, 'N');
+					ttyld_rint(tp, 'G');
+					ttyld_rint(tp, '\r');
+					ttyld_rint(tp, '\n');
 				}
 			}
 		}
 		if (event.event & BREAK_IND) {
 			DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n",
 			    event.pnum));
-			linesw[tp->t_line].l_rint(TTY_BI, tp);
+			ttyld_rint(tp, TTY_BI);
 		}
 		if (event.event & (LOWTX_IND | EMPTYTX_IND)) {
 			DLOG(DIGIDB_IRQ, (sc->dev, "port %d:%s%s\n",
 			    event.pnum,
 			    event.event & LOWTX_IND ? " LOWTX" : "",
 			    event.event & EMPTYTX_IND ?  " EMPTYTX" : ""));
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 		}
 	}
 	sc->gdata->eout = etail;
diff --git a/sys/dev/nmdm/nmdm.c b/sys/dev/nmdm/nmdm.c
index 8855a27ff006..cb25ecb0b694 100644
--- a/sys/dev/nmdm/nmdm.c
+++ b/sys/dev/nmdm/nmdm.c
@@ -154,12 +154,12 @@ nmdm_task_tty(void *arg, int pending __unused)
 	if (sp->other->dcd) {
 		if (!(tp->t_state & TS_ISOPEN)) {
 			sp->other->dcd = 0;
-			(void)(*linesw[otp->t_line].l_modem)(otp, 0);
+			(void)ttyld_modem(otp, 0);
 		}
 	} else {
 		if (tp->t_state & TS_ISOPEN) {
 			sp->other->dcd = 1;
-			(void)(*linesw[otp->t_line].l_modem)(otp, 1);
+			(void)ttyld_modem(otp, 1);
 		}
 	}
 	if (tp->t_state & TS_TTSTOP)
@@ -169,7 +169,7 @@ nmdm_task_tty(void *arg, int pending __unused)
 			return;
 		c = getc(&tp->t_outq);
 		if (otp->t_state & TS_ISOPEN)
-			(*linesw[otp->t_line].l_rint)(c, otp);
+			ttyld_rint(otp, c);
 	}
 	if (tp->t_outq.c_cc == 0)
 		ttwwakeup(tp);
@@ -255,7 +255,7 @@ nmdmopen(dev_t dev, int flag, int devtype, struct thread *td)
 		return (EBUSY);
 	}
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	return (error);
 }
 
diff --git a/sys/dev/ofw/ofw_console.c b/sys/dev/ofw/ofw_console.c
index 04ba580fa9bd..fde41e6f3612 100644
--- a/sys/dev/ofw/ofw_console.c
+++ b/sys/dev/ofw/ofw_console.c
@@ -138,7 +138,7 @@ ofw_dev_open(dev_t dev, int flag, int mode, struct thread *td)
 		return (EBUSY);
 	}
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	if (error == 0 && setuptimeout) {
 		polltime = hz / OFW_POLL_HZ;
@@ -165,7 +165,7 @@ ofw_dev_close(dev_t dev, int flag, int mode, struct thread *td)
 		return (ENXIO);
 	}
 
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	ttyclose(tp);
 
 	return (0);
@@ -218,7 +218,7 @@ ofw_timeout(void *v)
 
 	while ((c = ofw_cons_checkc(NULL)) != -1) {
 		if (tp->t_state & TS_ISOPEN) {
-			(*linesw[tp->t_line].l_rint)(c, tp);
+			ttyld_rint(tp, c);
 		}
 	}
 
diff --git a/sys/dev/rc/rc.c b/sys/dev/rc/rc.c
index 14b3c96d0649..319fa1dea58b 100644
--- a/sys/dev/rc/rc.c
+++ b/sys/dev/rc/rc.c
@@ -738,7 +738,7 @@ rc_pollcard(void *arg)
 				rc->rc_flags &= ~RC_MODCHG;
 				sc->sc_scheduled_event -= LOTS_OF_EVENTS;
 				critical_exit();
-				(*linesw[tp->t_line].l_modem)(tp, !!(rc->rc_msvr & MSVR_CD));
+				ttyld_modem(tp, !!(rc->rc_msvr & MSVR_CD));
 			}
 			if (rc->rc_flags & RC_DORXFER) {
 				critical_enter();
@@ -810,7 +810,7 @@ done1: ;
 				rc->rc_flags &= ~RC_DOXXFER;
 				rc->rc_tp.t_state &= ~TS_BUSY;
 				critical_exit();
-				(*linesw[tp->t_line].l_start)(tp);
+				ttyld_start(tp);
 			}
 			if (sc->sc_scheduled_event == 0)
 				break;
@@ -920,7 +920,7 @@ again:
 		(void) rc_modctl(rc, TIOCM_RTS|TIOCM_DTR, DMSET);
 
 		if ((rc->rc_msvr & MSVR_CD) || CALLOUT(dev))
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 	}
 	if (!(tp->t_state & TS_CARR_ON) && !CALLOUT(dev)
 	    && !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) {
@@ -931,7 +931,7 @@ again:
 			goto out;
 		goto again;
 	}
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	disc_optim(tp, &tp->t_termios, rc);
 	if ((tp->t_state & TS_ISOPEN) && CALLOUT(dev))
 		rc->rc_flags |= RC_ACTOUT;
@@ -960,7 +960,7 @@ rcclose(dev_t dev, int flag, int mode, d_thread_t *td)
 	    rc->rc_chan, dev);
 #endif
 	s = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	disc_optim(tp, &tp->t_termios, rc);
 	rc_hardclose(rc);
 	ttyclose(tp);
diff --git a/sys/dev/rp/rp.c b/sys/dev/rp/rp.c
index feff480ebd21..f99f403709ad 100644
--- a/sys/dev/rp/rp.c
+++ b/sys/dev/rp/rp.c
@@ -660,7 +660,7 @@ static void rp_do_receive(struct rp_port *rp, struct tty *tp,
 			else if (CharNStat & STMRCVROVRH)
 				rp->rp_overflows++;
 
-			(*linesw[tp->t_line].l_rint)(ch, tp);
+			ttyld_rint(tp, ch);
 			ToRecv--;
 		}
 /*
@@ -702,7 +702,7 @@ static void rp_do_receive(struct rp_port *rp, struct tty *tp,
 				}
 				ch = (u_char) rp_readch1(cp,sGetTxRxDataIO(cp));
 				spl = spltty();
-				(*linesw[tp->t_line].l_rint)(ch, tp);
+				ttyld_rint(tp, ch);
 				splx(spl);
 				ToRecv--;
 			}
@@ -731,12 +731,12 @@ static void rp_handle_port(struct rp_port *rp)
 	if(IntMask & DELTA_CD) {
 		if(ChanStatus & CD_ACT) {
 			if(!(tp->t_state & TS_CARR_ON) ) {
-				(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+				(void)ttyld_modem(tp, 1);
 			}
 		} else {
 			if((tp->t_state & TS_CARR_ON)) {
-				(void)(*linesw[tp->t_line].l_modem)(tp, 0);
-				if((*linesw[tp->t_line].l_modem)(tp, 0) == 0) {
+				(void)ttyld_modem(tp, 0);
+				if(ttyld_modem(tp, 0) == 0) {
 					rphardclose(rp);
 				}
 			}
@@ -784,7 +784,7 @@ static void rp_do_poll(void *not_used)
 				tp->t_state &= ~(TS_BUSY);
 			if(!(tp->t_state & TS_TTSTOP) &&
 				(count <= rp->rp_restart)) {
-				(*linesw[tp->t_line].l_start)(tp);
+				ttyld_start(tp);
 			}
 		}
 	}
@@ -1068,7 +1068,7 @@ open_top:
 		ChanStatus = sGetChanStatus(&rp->rp_channel);
 		if((IntMask & DELTA_CD) || IS_CALLOUT(dev)) {
 			if((ChanStatus & CD_ACT) || IS_CALLOUT(dev)) {
-					(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+					(void)ttyld_modem(tp, 1);
 			}
 		}
 
@@ -1087,7 +1087,7 @@ open_top:
 			goto out;
 		goto open_top;
 	}
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	rp_disc_optim(tp, &tp->t_termios);
 	if(tp->t_state & TS_ISOPEN && IS_CALLOUT(dev))
@@ -1130,7 +1130,7 @@ rpclose(dev, flag, mode, td)
 	tp = rp->rp_tty;
 
 	oldspl = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	rp_disc_optim(tp, &tp->t_termios);
 	rphardclose(rp);
 
@@ -1207,7 +1207,7 @@ rpwrite(dev, uio, flag)
 			return(error);
 	}
 
-	error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 	return error;
 }
 
diff --git a/sys/dev/sab/sab.c b/sys/dev/sab/sab.c
index e546e24a4bc1..0193431b9051 100644
--- a/sys/dev/sab/sab.c
+++ b/sys/dev/sab/sab.c
@@ -622,13 +622,13 @@ sabtty_softintr(struct sabtty_softc *sc)
 		if (sc->sc_iget == sc->sc_ibuf + sizeof(sc->sc_ibuf))
 			sc->sc_iget = sc->sc_ibuf;
 
-		(*linesw[tp->t_line].l_rint)(data, tp);
+		ttyld_rint(tp, data);
 	}
 
 	if (sc->sc_tx_done != 0) {
 		sc->sc_tx_done = 0;
 		tp->t_state &= ~TS_BUSY;
-		(*linesw[tp->t_line].l_start)(tp);
+		ttyld_start(tp);
 	}
 }
 
@@ -698,7 +698,7 @@ sabttyopen(dev_t dev, int flags, int mode, struct thread *td)
 	if (error != 0)
 		return (error);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error != 0)
 		return (error);
 
@@ -715,7 +715,7 @@ sabttyclose(dev_t dev, int flags, int mode, struct thread *td)
 	if ((tp->t_state & TS_ISOPEN) == 0)
 		return (0);
 
-	(*linesw[tp->t_line].l_close)(tp, flags);
+	ttyld_close(tp, flags);
 	ttyclose(tp);
 
 	return (0);
diff --git a/sys/dev/si/si.c b/sys/dev/si/si.c
index b4f8f0703ca6..4411d21db20f 100644
--- a/sys/dev/si/si.c
+++ b/sys/dev/si/si.c
@@ -714,7 +714,7 @@ open_top:
 		/* set initial DCD state */
 		pp->sp_last_hi_ip = ccbp->hi_ip;
 		if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) {
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 		}
 	}
 
@@ -740,7 +740,7 @@ open_top:
 		goto open_top;
 	}
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	si_disc_optim(tp, &tp->t_termios, pp);
 	if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor))
 		pp->sp_active_out = TRUE;
@@ -790,7 +790,7 @@ siclose(dev_t dev, int flag, int mode, struct thread *td)
 	si_write_enable(pp, 0);		/* block writes for ttywait() */
 
 	/* THIS MAY SLEEP IN TTYWAIT!!! */
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 
 	si_write_enable(pp, 1);
 
@@ -900,7 +900,7 @@ siwrite(dev_t dev, struct uio *uio, int flag)
 		}
 	}
 
-	error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 out:
 	splx(oldspl);
 	return (error);
@@ -1466,12 +1466,12 @@ si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip)
 		if (!(pp->sp_last_hi_ip & IP_DCD)) {
 			DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n",
 				tp->t_line));
-			(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+			(void)ttyld_modem(tp, 1);
 		}
 	} else {
 		if (pp->sp_last_hi_ip & IP_DCD) {
 			DPRINT((pp, DBG_INTR, "modem carr off\n"));
-			if ((*linesw[tp->t_line].l_modem)(tp, 0))
+			if (ttyld_modem(tp, 0))
 				(void) si_modem(pp, SET, 0);
 		}
 	}
@@ -1679,7 +1679,7 @@ si_intr(void *arg)
 			 */
 			if (ccbp->hi_state & ST_BREAK) {
 				if (isopen) {
-				    (*linesw[tp->t_line].l_rint)(TTY_BI, tp);
+				    ttyld_rint(tp, TTY_BI);
 				}
 				ccbp->hi_state &= ~ST_BREAK;   /* A Bit iffy this */
 				DPRINT((pp, DBG_INTR, "si_intr break\n"));
@@ -1808,7 +1808,7 @@ si_intr(void *arg)
 				 */
 				for(x = 0; x < n; x++) {
 					i = si_rxbuf[x];
-					if ((*linesw[tp->t_line].l_rint)(i, tp)
+					if (ttyld_rint(tp, i)
 					     == -1) {
 						pp->sp_delta_overflows++;
 					}
@@ -1821,7 +1821,7 @@ si_intr(void *arg)
 			/*
 			 * Do TX stuff
 			 */
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 
 		} /* end of for (all ports on this controller) */
 	} /* end of for (all controllers) */
@@ -1963,7 +1963,7 @@ si_lstart(void *arg)
 	ttwwakeup(tp);
 
 	/* nudge protocols - eg: ppp */
-	(*linesw[tp->t_line].l_start)(tp);
+	ttyld_start(tp);
 
 	pp->sp_state &= ~SS_INLSTART;
 	splx(oldspl);
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c
index ce064c4a5f6d..63883875bf29 100644
--- a/sys/dev/sio/sio.c
+++ b/sys/dev/sio/sio.c
@@ -454,7 +454,7 @@ siodetach(dev)
 				     com->ioportres);
 	if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
 		device_printf(dev, "still open, forcing close\n");
-		(*linesw[com->tp->t_line].l_close)(com->tp, 0);
+		ttyld_close(com->tp, 0);
 		ttyclose(com->tp);
 	} else {
 		if (com->ibuf != NULL)
@@ -1335,7 +1335,7 @@ open_top:
 		 * the true carrier.
 		 */
 		if (com->prev_modem_status & MSR_DCD || mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 	}
 	/*
 	 * Wait for DCD if necessary.
@@ -1351,7 +1351,7 @@ open_top:
 			goto out;
 		goto open_top;
 	}
-	error =	(*linesw[tp->t_line].l_open)(dev, tp);
+	error =	ttyld_open(tp, dev);
 	disc_optim(tp, &tp->t_termios, com);
 	if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
 		com->active_out = TRUE;
@@ -1383,7 +1383,7 @@ sioclose(dev, flag, mode, td)
 		return (ENODEV);
 	tp = com->tp;
 	s = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	disc_optim(tp, &tp->t_termios, com);
 	comhardclose(com);
 	ttyclose(tp);
@@ -1475,7 +1475,7 @@ sioread(dev, uio, flag)
 	com = com_addr(MINOR_TO_UNIT(mynor));
 	if (com == NULL || com->gone)
 		return (ENODEV);
-	return ((*linesw[com->tp->t_line].l_read)(com->tp, uio, flag));
+	return (ttyld_read(com->tp, uio, flag));
 }
 
 static int
@@ -1504,7 +1504,7 @@ siowrite(dev, uio, flag)
 	 */
 	if (constty != NULL && unit == comconsole)
 		constty = NULL;
-	return ((*linesw[com->tp->t_line].l_write)(com->tp, uio, flag));
+	return (ttyld_write(com->tp, uio, flag));
 }
 
 static void
@@ -1657,7 +1657,7 @@ sioinput(com)
 				if (line_status & LSR_PE)
 					recv_data |= TTY_PE;
 			}
-			(*linesw[tp->t_line].l_rint)(recv_data, tp);
+			ttyld_rint(tp, recv_data);
 			mtx_lock_spin(&sio_lock);
 		} while (buf < com->iptr);
 	}
@@ -2176,7 +2176,7 @@ repeat:
 				timeout(siobusycheck, com, hz / 100);
 				com->extra_state |= CSE_BUSYCHECK;
 			}
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 		}
 		if (com_events == 0)
 			break;
diff --git a/sys/dev/sx/sx.c b/sys/dev/sx/sx.c
index b3e1cf2061ef..68266bd6382d 100644
--- a/sys/dev/sx/sx.c
+++ b/sys/dev/sx/sx.c
@@ -453,7 +453,7 @@ open_top:
 		/* set initial DCD state */
 		if (DEV_IS_CALLOUT(mynor) ||
 					(sx_modem(sc, pp, GET, 0) & TIOCM_CD)) {
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 		}
 	}
 	/* whoops! we beat the close! */
@@ -475,7 +475,7 @@ open_top:
 		goto open_top;
 	}
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	sx_disc_optim(tp, &tp->t_termios, pp);
 	if (tp->t_state & TS_ISOPEN && DEV_IS_CALLOUT(mynor))
 		pp->sp_active_out = TRUE;
@@ -536,7 +536,7 @@ sxclose(
 	sx_write_enable(pp, 0);		/* block writes for ttywait() */
 
 	/* THIS MAY SLEEP IN TTYWAIT!!! */
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 
 	sx_write_enable(pp, 1);
 
@@ -675,7 +675,7 @@ sxwrite(
 			goto out;
 		}
 	}
-	error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 out:	splx(oldspl);
 	DPRINT((pp, DBG_WRITE, "sxwrite out\n"));
 	return (error);
@@ -1313,7 +1313,7 @@ sx_transmit(
 	 * discipline to send more.
 	 */
 	if (flags & CD1865_IER_TXRDY) {
-		(*linesw[tp->t_line].l_start)(tp);
+		ttyld_start(tp);
 		pp->sp_state &= ~SX_SS_IXMIT;
 		DPRINT((pp, DBG_TRANSMIT, "sx_xmit TXRDY out\n"));
 		return;
@@ -1365,11 +1365,11 @@ sx_modem_state(
 		if ((sx_cd1865_in(sc, CD1865_MSVR) & CD1865_MSVR_CD) == 0) {
 			DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n",
 				tp->t_line));
-			(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+			(void)ttyld_modem(tp, 1);
 		}
 		else {			/* CD went down.                      */
 			DPRINT((pp, DBG_INTR, "modem carr off\n"));
-			if ((*linesw[tp->t_line].l_modem)(tp, 0))
+			if (ttyld_modem(tp, 0))
 				(void)sx_modem(sc, pp, SET, 0);
 		}
 	}
@@ -1496,7 +1496,7 @@ sx_receive(
 		 */
 		for (x = 0; x < count; x++) {
 			i = sx_rxbuf[x];
-			if ((*linesw[tp->t_line].l_rint)(i, tp) == -1)
+			if (ttyld_rint(tp, i) == -1)
 				pp->sp_delta_overflows++;
 		}
 	}
@@ -1561,7 +1561,7 @@ sx_receive_exception(
 		ch |= TTY_FE;
 	else if (st & CD1865_RCSR_OE)
 		ch |= TTY_OE;
-	(*linesw[tp->t_line].l_rint)(ch, tp);
+	ttyld_rint(tp, ch);
 	pp->sp_state &= ~SX_SS_IRCVEXC;
 }
 
diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index eb685cffefff..0608ce5df25d 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -495,13 +495,13 @@ scopen(dev_t dev, int flag, int mode, struct thread *td)
 	tp->t_lflag = TTYDEF_LFLAG;
 	tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
 	scparam(tp, &tp->t_termios);
-	(*linesw[tp->t_line].l_modem)(tp, 1);
+	ttyld_modem(tp, 1);
     }
     else
 	if (tp->t_state & TS_XCLUDE && suser(td))
 	    return(EBUSY);
 
-    error = (*linesw[tp->t_line].l_open)(dev, tp);
+    error = ttyld_open(tp, dev);
 
     scp = sc_get_stat(dev);
     if (scp == NULL) {
@@ -561,7 +561,7 @@ scclose(dev_t dev, int flag, int mode, struct thread *td)
 	DPRINTF(5, ("done.\n"));
     }
     spltty();
-    (*linesw[tp->t_line].l_close)(tp, flag);
+    ttyld_close(tp, flag);
     ttyclose(tp);
     spl0();
     return(0);
@@ -618,23 +618,23 @@ sckbdevent(keyboard_t *thiskbd, int event, void *arg)
 
 	switch (KEYFLAGS(c)) {
 	case 0x0000: /* normal key */
-	    (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
+	    ttyld_rint(cur_tty, KEYCHAR(c));
 	    break;
 	case FKEY:  /* function key, return string */
 	    cp = kbd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
 	    if (cp != NULL) {
 	    	while (len-- >  0)
-		    (*linesw[cur_tty->t_line].l_rint)(*cp++, cur_tty);
+		    ttyld_rint(cur_tty, *cp++);
 	    }
 	    break;
 	case MKEY:  /* meta is active, prepend ESC */
-	    (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
-	    (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
+	    ttyld_rint(cur_tty, 0x1b);
+	    ttyld_rint(cur_tty, KEYCHAR(c));
 	    break;
 	case BKEY:  /* backtab fixed sequence (esc [ Z) */
-	    (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
-	    (*linesw[cur_tty->t_line].l_rint)('[', cur_tty);
-	    (*linesw[cur_tty->t_line].l_rint)('Z', cur_tty);
+	    ttyld_rint(cur_tty, 0x1b);
+	    ttyld_rint(cur_tty, '[');
+	    ttyld_rint(cur_tty, 'Z');
 	    break;
 	}
     }
@@ -3571,7 +3571,7 @@ sc_paste(scr_stat *scp, u_char *p, int count)
 	return;
     rmap = scp->sc->scr_rmap;
     for (; count > 0; --count)
-	(*linesw[tp->t_line].l_rint)(rmap[*p++], tp);
+	ttyld_rint(tp, rmap[*p++]);
 }
 
 void
diff --git a/sys/dev/syscons/sysmouse.c b/sys/dev/syscons/sysmouse.c
index b5135001a954..69c0ef3a4105 100644
--- a/sys/dev/syscons/sysmouse.c
+++ b/sys/dev/syscons/sysmouse.c
@@ -92,12 +92,12 @@ smopen(dev_t dev, int flag, int mode, struct thread *td)
 		tp->t_lflag = TTYDEF_LFLAG;
 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
 		smparam(tp, &tp->t_termios);
-		(*linesw[tp->t_line].l_modem)(tp, 1);
+		ttyld_modem(tp, 1);
 	} else if (tp->t_state & TS_XCLUDE && suser(td)) {
 		return EBUSY;
 	}
 
-	return (*linesw[tp->t_line].l_open)(dev, tp);
+	return ttyld_open(tp, dev);
 }
 
 static int
@@ -109,7 +109,7 @@ smclose(dev_t dev, int flag, int mode, struct thread *td)
 	tp = dev->si_tty;
 	s = spltty();
 	mouse_level = 0;
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	ttyclose(tp);
 	splx(s);
 
@@ -306,7 +306,7 @@ sysmouse_event(mouse_info_t *info)
 	buf[2] = y >> 1;
 	buf[4] = y - buf[2];
 	for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i)
-		(*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty);
+		ttyld_rint(sysmouse_tty, buf[i]);
 	if (mouse_level >= 1) {
 		/* extended part */
         	z = imax(imin(z, 127), -128);
diff --git a/sys/dev/uart/uart_tty.c b/sys/dev/uart/uart_tty.c
index 6867299a1ec3..f42a7dc16f59 100644
--- a/sys/dev/uart/uart_tty.c
+++ b/sys/dev/uart/uart_tty.c
@@ -286,24 +286,24 @@ uart_tty_intr(void *arg)
 				c |= TTY_FE;
 			if (xc & UART_STAT_PARERR)
 				c |= TTY_PE;
-			(*linesw[tp->t_line].l_rint)(c, tp);
+			ttyld_rint(tp, c);
 		}
 	}
 
 	if (pend & UART_IPEND_BREAK) {
 		if (tp != NULL && !(tp->t_iflag & IGNBRK))
-			(*linesw[tp->t_line].l_rint)(0, tp);
+			ttyld_rint(tp, 0);
 	}
 
 	if (pend & UART_IPEND_SIGCHG) {
 		sig = pend & UART_IPEND_SIGMASK;
 		if (sig & UART_SIG_DDCD)
-			(*linesw[tp->t_line].l_modem)(tp, sig & UART_SIG_DCD);
+			ttyld_modem(tp, sig & UART_SIG_DCD);
 		if ((sig & UART_SIG_DCTS) && (tp->t_cflag & CCTS_OFLOW) &&
 		    !sc->sc_hwoflow) {
 			if (sig & UART_SIG_CTS) {
 				tp->t_state &= ~TS_TTSTOP;
-				(*linesw[tp->t_line].l_start)(tp);
+				ttyld_start(tp);
 			} else
 				tp->t_state |= TS_TTSTOP;
 		}
@@ -311,7 +311,7 @@ uart_tty_intr(void *arg)
 
 	if (pend & UART_IPEND_TXIDLE) {
 		tp->t_state &= ~TS_BUSY;
-		(*linesw[tp->t_line].l_start)(tp);
+		ttyld_start(tp);
 	}
 }
 
@@ -422,7 +422,7 @@ uart_tty_open(dev_t dev, int flags, int mode, struct thread *td)
 		 * Handle initial DCD.
 		 */
 		if ((sc->sc_hwsig & UART_SIG_DCD) || sc->sc_callout)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 	}
 	/*
 	 * Wait for DCD if necessary.
@@ -440,7 +440,7 @@ uart_tty_open(dev_t dev, int flags, int mode, struct thread *td)
 	error = ttyopen(dev, tp);
 	if (error)
 		return (error);
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error)
 		return (error);
 
@@ -475,7 +475,7 @@ uart_tty_close(dev_t dev, int flags, int mode, struct thread *td)
 	/* Disable pulse capturing. */
 	sc->sc_pps.ppsparam.mode = 0;
 
-	(*linesw[tp->t_line].l_close)(tp, flags);
+	ttyld_close(tp, flags);
 	ttyclose(tp);
 	wakeup(sc);
 	wakeup(TSA_CARR_ON(tp));
diff --git a/sys/dev/usb/ubser.c b/sys/dev/usb/ubser.c
index 59ad8d5a6f68..f64fd0e3eb24 100644
--- a/sys/dev/usb/ubser.c
+++ b/sys/dev/usb/ubser.c
@@ -440,7 +440,7 @@ bad:
 			tp = sc->dev[i]->si_tty;
 			if (tp != NULL) {
 				if (tp->t_state & TS_ISOPEN) {
-					(*linesw[tp->t_line].l_close)(tp, 0);
+					ttyld_close(tp, 0);
 					ttyclose(tp);
 				}
 			}
@@ -474,7 +474,7 @@ USB_DETACH(ubser)
 			tp = sc->dev[i]->si_tty;
 			if (tp != NULL) {
 				if (tp->t_state & TS_ISOPEN) {
-					(*linesw[tp->t_line].l_close)(tp, 0);
+					ttyld_close(tp, 0);
 					ttyclose(tp);
 				}
 			}
@@ -694,7 +694,7 @@ ubserwritecb(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
 		CLR(tp->t_state, TS_FLUSH);
 	else
 		ndflush(&tp->t_outq, cc);
-	(*linesw[tp->t_line].l_start)(tp);
+	ttyld_start(tp);
 	splx(s);
 
 	return;
@@ -900,7 +900,7 @@ ubser_open(dev_t dev, int flag, int mode, usb_proc_ptr p)
 		/*
 		 * Handle initial DCD.
 		 */
-		(*linesw[tp->t_line].l_modem)(tp, 1);
+		ttyld_modem(tp, 1);
 	}
 
 	sc->sc_refcnt++;	/* XXX: wrong refcnt on error later on */
@@ -912,7 +912,7 @@ ubser_open(dev_t dev, int flag, int mode, usb_proc_ptr p)
 	if (error)
 		goto bad;
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error)
 		goto bad;
 
@@ -1013,7 +1013,7 @@ ubser_read(dev_t dev, struct uio *uio, int flag)
 	if (sc->sc_dying)
 		return (EIO);
 
-	error = (*linesw[tp->t_line].l_read)(tp, uio, flag);
+	error = ttyld_read(tp, uio, flag);
 
 	DPRINTF(("ubser_read: error = %d\n", error));
 
@@ -1035,7 +1035,7 @@ ubser_write(dev_t dev, struct uio *uio, int flag)
 	if (sc->sc_dying)
 		return (EIO);
 
-	error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 
 	DPRINTF(("ubser_write: error = %d\n", error));
 
diff --git a/sys/dev/usb/ucom.c b/sys/dev/usb/ucom.c
index e3cf7b6366de..07d4496c32a5 100644
--- a/sys/dev/usb/ucom.c
+++ b/sys/dev/usb/ucom.c
@@ -213,7 +213,7 @@ ucom_detach(struct ucom_softc *sc)
 		if (tp->t_state & TS_ISOPEN) {
 			device_printf(sc->sc_dev,
 				      "still open, forcing close\n");
-			(*linesw[tp->t_line].l_close)(tp, 0);
+			ttyld_close(tp, 0);
 			ttyclose(tp);
 		}
 	} else {
@@ -385,7 +385,7 @@ ucomopen(dev_t dev, int flag, int mode, usb_proc_ptr p)
 		 */
 		if (ISSET(sc->sc_msr, UMSR_DCD) ||
 		    (minor(dev) & UCOM_CALLOUT_MASK))
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 
 		ucomstartread(sc);
 	}
@@ -398,7 +398,7 @@ ucomopen(dev_t dev, int flag, int mode, usb_proc_ptr p)
 	if (error)
 		goto bad;
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error)
 		goto bad;
 
@@ -461,7 +461,7 @@ ucomclose(dev_t dev, int flag, int mode, usb_proc_ptr p)
 		goto quit;
 
 	s = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	disc_optim(tp, &tp->t_termios, sc);
 	ttyclose(tp);
 	splx(s);
@@ -503,7 +503,7 @@ ucomread(dev_t dev, struct uio *uio, int flag)
 	if (sc->sc_dying)
 		return (EIO);
 
-	error = (*linesw[tp->t_line].l_read)(tp, uio, flag);
+	error = ttyld_read(tp, uio, flag);
 
 	DPRINTF(("ucomread: error = %d\n", error));
 
@@ -525,7 +525,7 @@ ucomwrite(dev_t dev, struct uio *uio, int flag)
 	if (sc->sc_dying)
 		return (EIO);
 
-	error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
+	error = ttyld_write(tp, uio, flag);
 
 	DPRINTF(("ucomwrite: error = %d\n", error));
 
@@ -762,7 +762,7 @@ ucom_status_change(struct ucom_softc *sc)
 			return;
 		onoff = ISSET(sc->sc_msr, UMSR_DCD) ? 1 : 0;
 		DPRINTF(("ucom_status_change: DCD changed to %d\n", onoff));
-		(*linesw[tp->t_line].l_modem)(tp, onoff);
+		ttyld_modem(tp, onoff);
 	}
 }
 
@@ -993,7 +993,7 @@ ucomwritecb(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
 		CLR(tp->t_state, TS_FLUSH);
 	else
 		ndflush(&tp->t_outq, cc);
-	(*linesw[tp->t_line].l_start)(tp);
+	ttyld_start(tp);
 	splx(s);
 
 	return;
diff --git a/sys/dev/zs/zs.c b/sys/dev/zs/zs.c
index 6de28ed13152..46955261771b 100644
--- a/sys/dev/zs/zs.c
+++ b/sys/dev/zs/zs.c
@@ -436,13 +436,13 @@ zstty_softintr(struct zstty_softc *sc)
 		if (sc->sc_iget == sc->sc_ibuf + sizeof(sc->sc_ibuf))
 			sc->sc_iget = sc->sc_ibuf;
 
-		(*linesw[tp->t_line].l_rint)(data, tp);
+		ttyld_rint(tp, data);
 	}
 
 	if (sc->sc_tx_done != 0) {
 		sc->sc_tx_done = 0;
 		tp->t_state &= ~TS_BUSY;
-		(*linesw[tp->t_line].l_start)(tp);
+		ttyld_start(tp);
 	}
 }
 
@@ -495,7 +495,7 @@ zsttyopen(dev_t dev, int flags, int mode, struct thread *td)
 	if (error != 0)
 		return (error);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error != 0)
 		return (error);
 
@@ -512,7 +512,7 @@ zsttyclose(dev_t dev, int flags, int mode, struct thread *td)
 	if ((tp->t_state & TS_ISOPEN) == 0)
 		return (0);
 
-	(*linesw[tp->t_line].l_close)(tp, flags);
+	ttyld_close(tp, flags);
 	ttyclose(tp);
 
 	return (0);
diff --git a/sys/i386/isa/pcvt/pcvt_drv.c b/sys/i386/isa/pcvt/pcvt_drv.c
index d7d56d04390e..39c7b837ebdc 100644
--- a/sys/i386/isa/pcvt/pcvt_drv.c
+++ b/sys/i386/isa/pcvt/pcvt_drv.c
@@ -304,7 +304,7 @@ pcvt_open(dev_t dev, int flag, int mode, struct thread *td)
 		tp->t_lflag = TTYDEF_LFLAG;
 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
 		pcvt_param(tp, &tp->t_termios);
-		(*linesw[tp->t_line].l_modem)(tp, 1);	/* fake connection */
+		ttyld_modem(tp, 1);	/* fake connection */
 		winsz = 1;			/* set winsize later */
 	}
 	else if (tp->t_state & TS_XCLUDE && suser(td))
@@ -312,7 +312,7 @@ pcvt_open(dev_t dev, int flag, int mode, struct thread *td)
 		return (EBUSY);
 	}
 
-	retval = ((*linesw[tp->t_line].l_open)(dev, tp));
+	retval = (ttyld_open(tp, dev));
 
 	if(winsz == 1)
 	{
@@ -352,7 +352,7 @@ pcvt_close(dev_t dev, int flag, int mode, struct thread *td)
 
 	tp = pcvt_tty[i];
 
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 
 	ttyclose(tp);
 
@@ -442,13 +442,13 @@ pcvt_timeout(void *arg)
 			if(*cp == '\0')
 			{
 				/* pass a NULL character */
-				(*linesw[tp->t_line].l_rint)('\0', tp);
+				ttyld_rint(tp, '\0');
 			}
 /* XXX */		else
 #endif /* PCVT_NULLCHARS */
 
 			while (*cp)
-				(*linesw[tp->t_line].l_rint)(*cp++ & 0xff, tp);
+				ttyld_rint(tp, *cp++ & 0xff);
 		}
 
 		PCVT_DISABLE_INTR ();
diff --git a/sys/ia64/ia64/ssc.c b/sys/ia64/ia64/ssc.c
index d483aeb1b536..d87aa7609448 100644
--- a/sys/ia64/ia64/ssc.c
+++ b/sys/ia64/ia64/ssc.c
@@ -164,7 +164,7 @@ sscopen(dev_t dev, int flag, int mode, struct thread *td)
 
 	splx(s);
 
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 
 	if (error == 0 && setuptimeout) {
 		polltime = hz / SSC_POLL_HZ;
@@ -185,7 +185,7 @@ sscclose(dev_t dev, int flag, int mode, struct thread *td)
 		return ENXIO;
 
 	untimeout(ssctimeout, tp, ssctimeouthandle);
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 	ttyclose(tp);
 	return 0;
 }
@@ -242,7 +242,7 @@ ssctimeout(void *v)
 
 	while ((c = ssccncheckc(NULL)) != -1) {
 		if (tp->t_state & TS_ISOPEN)
-			(*linesw[tp->t_line].l_rint)(c, tp);
+			ttyld_rint(tp, c);
 	}
 	ssctimeouthandle = timeout(ssctimeout, tp, polltime);
 }
diff --git a/sys/kern/tty.c b/sys/kern/tty.c
index a49583e24a46..f43dd2f3b2a1 100644
--- a/sys/kern/tty.c
+++ b/sys/kern/tty.c
@@ -1014,10 +1014,10 @@ ttioctl(struct tty *tp, u_long cmd, void *data, int flag)
 			return (ENXIO);
 		if (t != tp->t_line) {
 			s = spltty();
-			(*linesw[tp->t_line].l_close)(tp, flag);
+			ttyld_close(tp, flag);
 			error = (*linesw[t].l_open)(device, tp);
 			if (error) {
-				(void)(*linesw[tp->t_line].l_open)(device, tp);
+				(void)ttyld_open(tp, device);
 				splx(s);
 				return (error);
 			}
@@ -1042,7 +1042,7 @@ ttioctl(struct tty *tp, u_long cmd, void *data, int flag)
 		if (!isctty(p, tp) && suser(td))
 			return (EACCES);
 		s = spltty();
-		(*linesw[tp->t_line].l_rint)(*(u_char *)data, tp);
+		ttyld_rint(tp, *(u_char *)data);
 		splx(s);
 		break;
 	case TIOCSTOP:			/* stop output, like ^S */
@@ -2728,7 +2728,7 @@ ttyread(dev_t dev, struct uio *uio, int flag)
 	    ("ttyread(): no tty pointer on device (%s)", devtoname(dev)));
 	if (tp == NULL)
 		return (ENODEV);
-	return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
+	return (ttyld_read(tp, uio, flag));
 }
 
 int
@@ -2743,7 +2743,7 @@ ttywrite(dev_t dev, struct uio *uio, int flag)
 	    ("ttywrite(): no tty pointer on device (%s)", devtoname(dev)));
 	if (tp == NULL)
 		return (ENODEV);
-	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
+	return (ttyld_write(tp, uio, flag));
 }
 
 int
diff --git a/sys/kern/tty_pty.c b/sys/kern/tty_pty.c
index 4542bbe53684..599b0b09ddd2 100644
--- a/sys/kern/tty_pty.c
+++ b/sys/kern/tty_pty.c
@@ -182,7 +182,7 @@ ptsopen(dev, flag, devtype, td)
 	else if (pti->pt_prison != td->td_ucred->cr_prison)
 		return (EBUSY);
 	if (tp->t_oproc)			/* Ctrlr still around. */
-		(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+		(void)ttyld_modem(tp, 1);
 	while ((tp->t_state & TS_CARR_ON) == 0) {
 		if (flag&FNONBLOCK)
 			break;
@@ -191,7 +191,7 @@ ptsopen(dev, flag, devtype, td)
 		if (error)
 			return (error);
 	}
-	error = (*linesw[tp->t_line].l_open)(dev, tp);
+	error = ttyld_open(tp, dev);
 	if (error == 0)
 		ptcwakeup(tp, FREAD|FWRITE);
 	return (error);
@@ -207,7 +207,7 @@ ptsclose(dev, flag, mode, td)
 	int err;
 
 	tp = dev->si_tty;
-	err = (*linesw[tp->t_line].l_close)(tp, flag);
+	err = ttyld_close(tp, flag);
 	(void) ttyclose(tp);
 	return (err);
 }
@@ -268,7 +268,7 @@ again:
 			return (error);
 	} else
 		if (tp->t_oproc)
-			error = (*linesw[tp->t_line].l_read)(tp, uio, flag);
+			error = ttyld_read(tp, uio, flag);
 	ptcwakeup(tp, FWRITE);
 	return (error);
 }
@@ -289,7 +289,7 @@ ptswrite(dev, uio, flag)
 	tp = dev->si_tty;
 	if (tp->t_oproc == 0)
 		return (EIO);
-	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
+	return (ttyld_write(tp, uio, flag));
 }
 
 /*
@@ -347,7 +347,7 @@ ptcopen(dev, flag, devtype, td)
 	tp->t_timeout = -1;
 	tp->t_oproc = ptsstart;
 	tp->t_stop = ptsstop;
-	(void)(*linesw[tp->t_line].l_modem)(tp, 1);
+	(void)ttyld_modem(tp, 1);
 	tp->t_lflag &= ~EXTPROC;
 	pti = dev->si_drv1;
 	pti->pt_prison = td->td_ucred->cr_prison;
@@ -367,7 +367,7 @@ ptcclose(dev, flags, fmt, td)
 	struct tty *tp;
 
 	tp = dev->si_tty;
-	(void)(*linesw[tp->t_line].l_modem)(tp, 0);
+	(void)ttyld_modem(tp, 0);
 
 	/*
 	 * XXX MDMBUF makes no sense for ptys but would inhibit the above
@@ -600,7 +600,7 @@ again:
 				wakeup(TSA_HUP_OR_INPUT(tp));
 				goto block;
 			}
-			(*linesw[tp->t_line].l_rint)(*cp++, tp);
+			ttyld_rint(tp, *cp++);
 			cnt++;
 			cc--;
 		}
diff --git a/sys/pc98/cbus/sio.c b/sys/pc98/cbus/sio.c
index ba1a15f29aff..1416b276d829 100644
--- a/sys/pc98/cbus/sio.c
+++ b/sys/pc98/cbus/sio.c
@@ -782,7 +782,7 @@ siodetach(dev)
 				     com->ioportres);
 	if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
 		device_printf(dev, "still open, forcing close\n");
-		(*linesw[com->tp->t_line].l_close)(com->tp, 0);
+		ttyld_close(com->tp, 0);
 		ttyclose(com->tp);
 	} else {
 		if (com->ibuf != NULL)
@@ -2048,10 +2048,10 @@ open_top:
 		    (!IS_8251(com->pc98_if_type) &&
 			(com->prev_modem_status & MSR_DCD)) ||
 		    mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 #else
 		if (com->prev_modem_status & MSR_DCD || mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 #endif
 	}
 	/*
@@ -2068,7 +2068,7 @@ open_top:
 			goto out;
 		goto open_top;
 	}
-	error =	(*linesw[tp->t_line].l_open)(dev, tp);
+	error =	ttyld_open(tp, dev);
 	disc_optim(tp, &tp->t_termios, com);
 	if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
 		com->active_out = TRUE;
@@ -2100,7 +2100,7 @@ sioclose(dev, flag, mode, td)
 		return (ENODEV);
 	tp = com->tp;
 	s = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 #ifdef PC98
 	com->modem_checking = 0;
 #endif
@@ -2236,7 +2236,7 @@ sioread(dev, uio, flag)
 	com = com_addr(MINOR_TO_UNIT(mynor));
 	if (com == NULL || com->gone)
 		return (ENODEV);
-	return ((*linesw[com->tp->t_line].l_read)(com->tp, uio, flag));
+	return (ttyld_read(com->tp, uio, flag));
 }
 
 static int
@@ -2265,7 +2265,7 @@ siowrite(dev, uio, flag)
 	 */
 	if (constty != NULL && unit == comconsole)
 		constty = NULL;
-	return ((*linesw[com->tp->t_line].l_write)(com->tp, uio, flag));
+	return (ttyld_write(com->tp, uio, flag));
 }
 
 static void
@@ -2430,7 +2430,7 @@ sioinput(com)
 				if (line_status & LSR_PE)
 					recv_data |= TTY_PE;
 			}
-			(*linesw[tp->t_line].l_rint)(recv_data, tp);
+			ttyld_rint(tp, recv_data);
 			mtx_lock_spin(&sio_lock);
 		} while (buf < com->iptr);
 	}
@@ -3218,7 +3218,7 @@ repeat:
 				timeout(siobusycheck, com, hz / 100);
 				com->extra_state |= CSE_BUSYCHECK;
 			}
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 		}
 		if (com_events == 0)
 			break;
@@ -3886,8 +3886,8 @@ commint(dev_t dev)
 	}
 	if ((delta & TIOCM_CAR) && (mynor & CALLOUT_MASK) == 0) {
 	    if (stat & TIOCM_CAR )
-		(void)(*linesw[tp->t_line].l_modem)(tp, 1);
-	    else if ((*linesw[tp->t_line].l_modem)(tp, 0) == 0) {
+		(void)ttyld_modem(tp, 1);
+	    else if (ttyld_modem(tp, 0) == 0) {
 		/* negate DTR, RTS */
 		com_tiocm_bic(com, (tp->t_cflag & HUPCL) ?
 				TIOCM_DTR|TIOCM_RTS|TIOCM_LE : TIOCM_LE );
diff --git a/sys/pc98/pc98/sio.c b/sys/pc98/pc98/sio.c
index ba1a15f29aff..1416b276d829 100644
--- a/sys/pc98/pc98/sio.c
+++ b/sys/pc98/pc98/sio.c
@@ -782,7 +782,7 @@ siodetach(dev)
 				     com->ioportres);
 	if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
 		device_printf(dev, "still open, forcing close\n");
-		(*linesw[com->tp->t_line].l_close)(com->tp, 0);
+		ttyld_close(com->tp, 0);
 		ttyclose(com->tp);
 	} else {
 		if (com->ibuf != NULL)
@@ -2048,10 +2048,10 @@ open_top:
 		    (!IS_8251(com->pc98_if_type) &&
 			(com->prev_modem_status & MSR_DCD)) ||
 		    mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 #else
 		if (com->prev_modem_status & MSR_DCD || mynor & CALLOUT_MASK)
-			(*linesw[tp->t_line].l_modem)(tp, 1);
+			ttyld_modem(tp, 1);
 #endif
 	}
 	/*
@@ -2068,7 +2068,7 @@ open_top:
 			goto out;
 		goto open_top;
 	}
-	error =	(*linesw[tp->t_line].l_open)(dev, tp);
+	error =	ttyld_open(tp, dev);
 	disc_optim(tp, &tp->t_termios, com);
 	if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
 		com->active_out = TRUE;
@@ -2100,7 +2100,7 @@ sioclose(dev, flag, mode, td)
 		return (ENODEV);
 	tp = com->tp;
 	s = spltty();
-	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyld_close(tp, flag);
 #ifdef PC98
 	com->modem_checking = 0;
 #endif
@@ -2236,7 +2236,7 @@ sioread(dev, uio, flag)
 	com = com_addr(MINOR_TO_UNIT(mynor));
 	if (com == NULL || com->gone)
 		return (ENODEV);
-	return ((*linesw[com->tp->t_line].l_read)(com->tp, uio, flag));
+	return (ttyld_read(com->tp, uio, flag));
 }
 
 static int
@@ -2265,7 +2265,7 @@ siowrite(dev, uio, flag)
 	 */
 	if (constty != NULL && unit == comconsole)
 		constty = NULL;
-	return ((*linesw[com->tp->t_line].l_write)(com->tp, uio, flag));
+	return (ttyld_write(com->tp, uio, flag));
 }
 
 static void
@@ -2430,7 +2430,7 @@ sioinput(com)
 				if (line_status & LSR_PE)
 					recv_data |= TTY_PE;
 			}
-			(*linesw[tp->t_line].l_rint)(recv_data, tp);
+			ttyld_rint(tp, recv_data);
 			mtx_lock_spin(&sio_lock);
 		} while (buf < com->iptr);
 	}
@@ -3218,7 +3218,7 @@ repeat:
 				timeout(siobusycheck, com, hz / 100);
 				com->extra_state |= CSE_BUSYCHECK;
 			}
-			(*linesw[tp->t_line].l_start)(tp);
+			ttyld_start(tp);
 		}
 		if (com_events == 0)
 			break;
@@ -3886,8 +3886,8 @@ commint(dev_t dev)
 	}
 	if ((delta & TIOCM_CAR) && (mynor & CALLOUT_MASK) == 0) {
 	    if (stat & TIOCM_CAR )
-		(void)(*linesw[tp->t_line].l_modem)(tp, 1);
-	    else if ((*linesw[tp->t_line].l_modem)(tp, 0) == 0) {
+		(void)ttyld_modem(tp, 1);
+	    else if (ttyld_modem(tp, 0) == 0) {
 		/* negate DTR, RTS */
 		com_tiocm_bic(com, (tp->t_cflag & HUPCL) ?
 				TIOCM_DTR|TIOCM_RTS|TIOCM_LE : TIOCM_LE );