From 91cee613584939787089a29b7dc60a256d402fdc Mon Sep 17 00:00:00 2001
From: joerg <joerg@FreeBSD.org>
Date: Thu, 19 Dec 1996 18:33:13 +0000
Subject: Test in mseopen() whether the device has been configured at all, and
 refuse the open intent with ENXIO otherwise.

Closes PR # bin/2226.

Reviewed by:	bde
---
 sys/dev/mse/mse.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'sys/dev/mse')

diff --git a/sys/dev/mse/mse.c b/sys/dev/mse/mse.c
index b54417e..50f04be 100644
--- a/sys/dev/mse/mse.c
+++ b/sys/dev/mse/mse.c
@@ -11,7 +11,7 @@
  * this software for any purpose.  It is provided "as is"
  * without express or implied warranty.
  *
- * $Id: mse.c,v 1.27 1996/06/08 09:37:51 bde Exp $
+ * $Id: mse.c,v 1.28 1996/09/06 23:07:51 phk Exp $
  */
 /*
  * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
@@ -111,6 +111,7 @@ static struct mse_softc {
 #define	MSESC_WANT	0x2
 
 /* and Mouse Types */
+#define	MSE_NONE	0	/* don't move this! */
 #define	MSE_LOGITECH	0x1
 #define	MSE_ATIINPORT	0x2
 #define	MSE_LOGI_SIG	0xA5
@@ -263,6 +264,8 @@ mseopen(dev, flags, fmt, p)
 	if (MSE_UNIT(dev) >= NMSE)
 		return (ENXIO);
 	sc = &mse_sc[MSE_UNIT(dev)];
+	if (sc->sc_mousetype == MSE_NONE)
+		return (ENXIO);
 	if (sc->sc_flags & MSESC_OPEN)
 		return (EBUSY);
 	sc->sc_flags |= MSESC_OPEN;
-- 
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