Add -x option. This causes pccardd to exit after probing the cards. This

is useful for low memory systems.

PR: 36418
Submitted by: Forrest W. Christian

2 files changed, 14 insertions, 2 deletions

diff --git a/usr.sbin/pccard/pccardd/pccardd.8 b/usr.sbin/pccard/pccardd/pccardd.8
index 71523d4096a7..33e3a3a867d2 100644
--- a/usr.sbin/pccard/pccardd/pccardd.8
+++ b/usr.sbin/pccard/pccardd/pccardd.8
@@ -35,6 +35,7 @@
 .Nm
 .Op Fl d
 .Op Fl v
+.Op Fl x
 .Op Fl z
 .Op Fl i Ar IRQ
 .Op Fl I
@@ -137,6 +138,14 @@ display error messages.
 .It Fl v
 After reading the configuration file, print out a summary
 of it.
+.It Fl x
+Exits immediately after the cards have been probed and attached.
+This is primarily useful in embedded applications where it is
+desirable to use
+.Nm
+to start PC-CARD devices but prohibitive memory-wise to leave the
+.Nm
+process running.
 .It Fl z
 Delays running as a daemon until after the cards have been probed and attached.
 .It Fl I
diff --git a/usr.sbin/pccard/pccardd/pccardd.c b/usr.sbin/pccard/pccardd/pccardd.c
index ba703365ffbc..1b18b78505fc 100644
--- a/usr.sbin/pccard/pccardd/pccardd.c
+++ b/usr.sbin/pccard/pccardd/pccardd.c
@@ -156,12 +156,13 @@ main(int argc, char *argv[])
 {
 	struct slot *sp;
 	int count, dodebug = 0;
+	int probeonly = 0;
 	int delay = 0;
 	int irq_arg[16];
 	int irq_specified = 0;
 	int i;
 	struct sockaddr_un sun;
-#define	COM_OPTS	":Idvf:s:i:z"
+#define	COM_OPTS	":Idf:i:s:vxz"
 
 	bzero(irq_arg, sizeof(irq_arg));
 	use_kern_irq = 1;
@@ -224,12 +225,14 @@ main(int argc, char *argv[])
 	if (doverbose)
 		dump_config_file();
 	log_setup();
-	if (!dodebug && !delay)
+	if (!dodebug && !delay && !probeonly)
 		if (daemon(0, 0))
 			die("fork failed");
 	slots = readslots();
 	if (slots == 0)
 		die("no PC-CARD slots");
+	if (probeonly)
+		exit(0);
 	if (delay)
 		if (daemon(0, 0))
 			die("fork failed");