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From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Sat, 2 Jul 2011 20:58:33 +0000 (UTC)
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Subject: svn commit: r223728 - head/sys/dev/usb/input
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Author: hselasky
Date: Sat Jul  2 20:58:33 2011
New Revision: 223728
URL: http://svn.freebsd.org/changeset/base/223728

Log:
  Fix for "nomatch" event for ums and ukbd drivers when uhid is loaded.
  
  MFC after:	3 days

Modified:
  head/sys/dev/usb/input/uhid.c

Modified: head/sys/dev/usb/input/uhid.c
==============================================================================
--- head/sys/dev/usb/input/uhid.c	Sat Jul  2 20:26:37 2011	(r223727)
+++ head/sys/dev/usb/input/uhid.c	Sat Jul  2 20:58:33 2011	(r223728)
@@ -634,6 +634,18 @@ uhid_probe(device_t dev)
 	if (usb_test_quirk(uaa, UQ_HID_IGNORE))
 		return (ENXIO);
 
+	/*
+	 * Don't attach to mouse and keyboard devices, hence then no
+	 * "nomatch" event is generated and then ums and ukbd won't
+	 * attach properly when loaded.
+	 */
+	if ((uaa->info.bInterfaceClass == UICLASS_HID) &&
+	    (uaa->info.bInterfaceSubClass == UISUBCLASS_BOOT) &&
+	    ((uaa->info.bInterfaceProtocol == UIPROTO_BOOT_KEYBOARD) ||
+	     (uaa->info.bInterfaceProtocol == UIPROTO_MOUSE))) {
+		return (ENXIO);
+	}
+
 	return (BUS_PROBE_GENERIC);
 }