add an LKM for "wi at pcmcia" as an example for the new MOD_DRV LKM type

sys/lkm/dev/pcmcia/wi_pcmcia/Makefile

@@ -0,0 +1,21 @@
+# $NetBSD: Makefile,v 1.1 2004/08/18 13:12:07 drochner Exp $
+
+S= ${.CURDIR}/../../../..
+
+KMOD= wi_pcmcia
+SRCS= wi_pcmcia_lkm.c
+NOMAN=	#yes
+WARNS=	2
+
+#CPPFLAGS+=	-DDIAGNOSTIC -DLOCKDEBUG
+CPPFLAGS+=	-DDIAGNOSTIC -DDEBUG
+
+.PATH:	$S/dev/pcmcia $S/dev/ic
+SRCS+=	if_wi_pcmcia.c
+
+# if the "wi" driver backend is already in the
+# kernel (as "wi at pci"), comment out / uncomment
+SRCS+=	wi.c
+#CPPFLAGS+=	-DWI_DRIVER_IS_PRESENT
+
+.include <bsd.kmod.mk>

sys/lkm/dev/pcmcia/wi_pcmcia/bpfilter.h

@@ -0,0 +1,5 @@
+/* $NetBSD: bpfilter.h,v 1.1 2004/08/18 13:12:07 drochner Exp $ */
+
+/* This is a hack. */
+
+#define NBPFILTER 0

sys/lkm/dev/pcmcia/wi_pcmcia/wi_pcmcia_lkm.c

@@ -0,0 +1,47 @@
+/* $NetBSD: wi_pcmcia_lkm.c,v 1.1 2004/08/18 13:12:07 drochner Exp $ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/lkm.h>
+
+#ifndef WI_DRIVER_IS_PRESENT
+CFDRIVER_DECL(wi, DV_DULL, NULL);
+#endif
+
+extern struct cfdriver wi_cd;
+extern struct cfattach wi_pcmcia_ca;
+
+static int pcmcialoc[] = { -1, -1 }; /* function, irq */
+static struct cfparent pcmciaparent = {
+	"pcmcia", "pcmcia", DVUNIT_ANY
+};
+static struct cfdata wi_pcmcia_cfdata[] = {
+	{"wi", "wi_pcmcia", 0, FSTATE_STAR, pcmcialoc, 0, &pcmciaparent, 0},
+	{ 0 }
+};
+
+static struct cfdriver *wi_pcmcia_cfdrivers[] = {
+	&wi_cd,
+	NULL
+};
+static struct cfattach *wi_pcmcia_cfattachs[] = {
+	&wi_pcmcia_ca,
+	NULL
+};
+static const struct cfattachlkminit wi_pcmcia_cfattachinit[] = {
+	{ "wi", wi_pcmcia_cfattachs },
+	{ NULL }
+};
+
+int wi_pcmcia_lkmentry(struct lkm_table *, int, int);
+MOD_DRV("wi_pcmcia", wi_pcmcia_cfdrivers, wi_pcmcia_cfattachinit,
+	wi_pcmcia_cfdata);
+
+int
+wi_pcmcia_lkmentry(struct lkm_table *lkmtp, int cmd, int ver)
+{
+
+	DISPATCH(lkmtp, cmd, ver, lkm_nofunc, lkm_nofunc, lkm_nofunc);
+}