diff --git a/sys/arch/x68k/dev/grfvar.h b/sys/arch/x68k/dev/grfvar.h
index 6e35ec81f19e..d0ea5e7f96e3 100644
--- a/sys/arch/x68k/dev/grfvar.h
+++ b/sys/arch/x68k/dev/grfvar.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: grfvar.h,v 1.1.1.1 1996/05/05 12:17:03 oki Exp $	*/
+/*	$NetBSD: grfvar.h,v 1.2 1997/10/09 13:19:26 oki Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -56,8 +56,8 @@ struct	grfsw {
 	int	gd_hwid;	/* id returned by hardware */
 	int	gd_swid;	/* id to be returned by software */
 	char	*gd_desc;	/* description printed at config time */
-	int	(*gd_init)();	/* boot time init routine */
-	int	(*gd_mode)();	/* misc function routine */
+	int	(*gd_init) __P((struct grf_softc *, caddr_t));
+	int	(*gd_mode) __P((struct grf_softc *, u_long, caddr_t));
 };
 
 /* per display info */