From ae1e03e941ddd80925287313d5296162f3cc3081 Mon Sep 17 00:00:00 2001
From: imp <imp@FreeBSD.org>
Date: Thu, 20 Jan 2005 19:59:31 +0000
Subject: [PATCH] Only attach to network functions.  I'm not aware of any
 multifunction (pccard sense) sn based cards, but this won't hurt.  The
 pseudo-multifunction cards need a special driver anyway...

---
 sys/dev/sn/if_sn_pccard.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sys/dev/sn/if_sn_pccard.c b/sys/dev/sn/if_sn_pccard.c
index 48978a04dac3..f1556c0d18f7 100644
--- a/sys/dev/sn/if_sn_pccard.c
+++ b/sys/dev/sn/if_sn_pccard.c
@@ -46,6 +46,7 @@ __FBSDID("$FreeBSD$");
 #include <machine/bus.h>
 
 #include <dev/pccard/pccardvar.h>
+#include <dev/pccard/pccard_cis.h>
 #include <dev/sn/if_snvar.h>
 
 #include "card_if.h"
@@ -64,6 +65,15 @@ static int
 sn_pccard_match(device_t dev)
 {
 	const struct pccard_product *pp;
+	int		error;
+	uint32_t	fcn = PCCARD_FUNCTION_UNSPEC;
+
+	/* Make sure we're a network function */
+	error = pccard_get_function(dev, &fcn);
+	if (error != 0)
+		return (error);
+	if (fcn != PCCARD_FUNCTION_NETWORK)
+		return (ENXIO);
 
 	if ((pp = pccard_product_lookup(dev, sn_pccard_products,
 	    sizeof(sn_pccard_products[0]), NULL)) != NULL) {