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Diffstat (limited to 'sys/kern/subr_autoconf.c')
-rw-r--r--sys/kern/subr_autoconf.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c
index 63909888184..390dee9ca8b 100644
--- a/sys/kern/subr_autoconf.c
+++ b/sys/kern/subr_autoconf.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: subr_autoconf.c,v 1.73 2013/12/12 20:56:01 guenther Exp $ */
+/* $OpenBSD: subr_autoconf.c,v 1.74 2014/03/13 03:52:56 dlg Exp $ */
/* $NetBSD: subr_autoconf.c,v 1.21 1996/04/04 06:06:18 cgd Exp $ */
/*
@@ -859,6 +859,16 @@ device_lookup(struct cfdriver *cd, int unit)
return (dv);
}
+struct device *
+device_mainbus(void)
+{
+ extern struct cfdriver mainbus_cd;
+
+ if (mainbus_cd.cd_ndevs < 1)
+ return (NULL);
+
+ return (mainbus_cd.cd_devs[0]);
+}
/*
* Increments the ref count on the device structure. The device