PERFORCE change 157868 for review

[Hans Petter Selasky]

http://perforce.freebsd.org/chv.cgi?CH=157868

Change 157868 by hselasky at hselasky_laptop001 on 2009/02/17 21:34:44

	
	USB INPUT: Correct my Microsoft UMS patch.

Affected files ...

.. //depot/projects/usb/src/sys/dev/usb2/input/ums2.c#16 edit

Differences ...

==== //depot/projects/usb/src/sys/dev/usb2/input/ums2.c#16 (text+ko) ====

@@ -511,7 +511,8 @@
 	 * positions. Correct this:
 	 */
 	isizebits = isize * 8;
-	if (isizebits <= 0) {
+	if ((sc->sc_iid != 0) && (isizebits > 8)) {
+		isizebits -= 8;	/* remove size of report ID */
 		sc->sc_loc_w.pos %= isizebits;
 		sc->sc_loc_x.pos %= isizebits;
 		sc->sc_loc_y.pos %= isizebits;