--- xinu/sys/open.c	2018/04/24 17:39:04	1.1
+++ xinu/sys/open.c	2018/04/24 17:39:59	1.1.1.2
@@ -8,13 +8,16 @@
  *  open  -  open a connection to a device/file (parms 2 &3 are optional)
  *------------------------------------------------------------------------
  */
-SYSCALL	open(descrp, nam, mode)
+open(descrp, nam, mode)
 int	descrp;
 char	*nam;
 char	*mode;
 {
 	struct	devsw	*devptr;
 
+#ifdef	DEBUG1
+	dotrace("open", &descrp, 3);
+#endif
 	if ( isbaddev(descrp) )
 		return(SYSERR);
 	devptr = &devtab[descrp];