diff -upr sys.org/dev/pccbb/pccbb.c sys/dev/pccbb/pccbb.c
--- sys.org/dev/pccbb/pccbb.c	Thu Jun 12 15:06:14 2003
+++ sys/dev/pccbb/pccbb.c	Wed Jun 25 17:49:28 2003
@@ -86,6 +86,8 @@
 #include <sys/sysctl.h>
 #include <sys/kthread.h>
 #include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/ioccom.h>
 #include <machine/bus.h>
 #include <sys/rman.h>
 #include <machine/resource.h>
@@ -193,6 +195,12 @@ SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_me
     &cbb_start_mem, CBB_START_MEM,
     "Starting address for memory allocations");
 
+int cbb_boot_deactivated = 0;
+TUNABLE_INT("hw.cbb.boot_deactivated", &cbb_boot_deactivated);
+SYSCTL_INT(_hw_cbb, OID_AUTO, boot_deactivated, CTLFLAG_RD,
+    &cbb_boot_deactivated, 0,
+    "Override the automatic powering up of pccards at boot.");
+
 u_long cbb_start_16_io = CBB_START_16_IO;
 TUNABLE_INT("hw.cbb.start_16_io", (int *)&cbb_start_16_io);
 SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_16_io, CTLFLAG_RW,
@@ -264,6 +272,86 @@ static uint32_t cbb_read_config(device_t
 static void	cbb_write_config(device_t brdev, int b, int s, int f,
 		    int reg, uint32_t val, int width);
 
+static d_open_t		crdopen;
+static d_close_t	crdclose;
+static d_ioctl_t	crdioctl;
+
+#define CDEV_MAJOR	MAJOR_AUTO
+static struct cdevsw crd_cdevsw = {
+	.d_open =	crdopen,
+	.d_close =	crdclose,
+	.d_ioctl =	crdioctl,
+	.d_name =	"crd",
+	.d_maj =	CDEV_MAJOR,
+	.d_flags =	0
+};
+
+#define PIOCSVIR	_IOW('P', 10, int)	/* Virtual insert/remove */
+
+static  int
+crdopen(dev_t dev, int oflags, int devtype, d_thread_t *td)
+{
+	if (dev == NULL || dev->si_drv1 == NULL) {
+		return (ENXIO);
+	}
+
+	return (0);
+}
+
+static  int
+crdclose(dev_t dev, int fflag, int devtype, d_thread_t *td)
+{
+	return (0);
+}
+
+static  int
+crdioctl(dev_t dev, u_long cmd, caddr_t data, int fflag, d_thread_t *td)
+{
+	struct cbb_softc *sc;
+	int		error;
+	int		pwval;
+
+	sc = dev->si_drv1;
+	error = 0;
+
+	switch(cmd) {
+	/*
+	 * Set power values.
+	 */
+	case PIOCSVIR:
+		pwval = *(int *)data;
+
+		switch (pwval) {
+		case 0:
+			if (!(sc->flags & CBB_CARD_OK)) {
+				error = EINVAL;
+				break;
+			}
+
+			sc->flags |= CBB_INACTIVATE;
+			cbb_removal(sc);
+			break;
+
+		case 1:
+			if (sc->flags & CBB_CARD_OK) {
+				error = EINVAL;
+				break;
+			}
+
+			sc->flags &= ~CBB_INACTIVATE;
+			cbb_insert(sc);
+			break;
+		}
+
+		break;
+
+	default:
+		error = ENOTTY;
+	}
+
+	return (error);
+}
+
 /*
  */
 static __inline void
@@ -629,6 +717,8 @@ cbb_attach(device_t brdev)
 {
 	struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(brdev);
 	int rid;
+	int unit;
+	dev_t cbb_dev_t;
 
 	mtx_init(&sc->mtx, device_get_nameunit(brdev), "cbb", MTX_DEF);
 	cv_init(&sc->cv, "cbb cv");
@@ -751,6 +841,10 @@ cbb_attach(device_t brdev)
 	if (bootverbose)
 		cbb_print_config(brdev);
 
+	if (cbb_boot_deactivated) {
+		sc->flags |= CBB_INACTIVATE;
+	}
+
 	/* Start the thread */
 	if (kthread_create(cbb_event_thread, sc, &sc->event_thread, 0, 0,
 		"%s%d", device_get_name(brdev), device_get_unit(brdev))) {
@@ -758,6 +852,10 @@ cbb_attach(device_t brdev)
 		panic("cbb_create_event_thread");
 	}
 
+	unit = device_get_unit(sc->dev);
+	cbb_dev_t = make_dev(&crd_cdevsw, unit, 0, 0, 0664, "card%d", unit);
+	cbb_dev_t->si_drv1 = sc;
+
 	return (0);
 err:
 	if (sc->irq_res)
@@ -1034,6 +1132,7 @@ cbb_removal(struct cbb_softc *sc)
 			CARD_DETACH_CARD(sc->cbdev);
 	}
 	cbb_destroy_res(sc);
+	sc->flags &= ~CBB_CARD_OK;
 }
 
 /************************************************************************/
diff -upr sys.org/dev/pccbb/pccbbvar.h sys/dev/pccbb/pccbbvar.h
--- sys.org/dev/pccbb/pccbbvar.h	Thu Jun 12 12:37:28 2003
+++ sys/dev/pccbb/pccbbvar.h	Wed Jun 25 17:49:28 2003
@@ -66,6 +66,7 @@ struct cbb_softc {
 	struct mtx	mtx;
 	struct cv	cv;
 	u_int32_t	flags;
+#define CBB_INACTIVATE		0x04000000
 #define CBB_CARD_OK		0x08000000
 #define	CBB_KLUDGE_ALLOC	0x10000000
 #define	CBB_16BIT_CARD		0x20000000