Index: core/control.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/core/control.c,v
retrieving revision 1.69
diff -u -r1.69 control.c
--- core/control.c	20 Nov 2005 14:06:59 -0000	1.69
+++ core/control.c	4 Jan 2006 16:32:44 -0000
@@ -20,6 +20,7 @@
  */
 
 #include <sound/driver.h>
+#include <linux/device.h>
 #include <linux/threads.h>
 #include <linux/interrupt.h>
 #include <linux/smp_lock.h>
@@ -538,6 +539,7 @@
 	strlcpy(info->longname, card->longname, sizeof(info->longname));
 	strlcpy(info->mixername, card->mixername, sizeof(info->mixername));
 	strlcpy(info->components, card->components, sizeof(info->components));
+	strlcpy(info->busid, card->dev->bus_id, sizeof(info->busid));
 	up_read(&snd_ioctl_rwsem);
 	if (copy_to_user(arg, info, sizeof(struct snd_ctl_card_info))) {
 		kfree(info);