From owner-freebsd-bugs@FreeBSD.ORG Sun Aug 31 13:10:10 2003 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 112D116A4BF for ; Sun, 31 Aug 2003 13:10:10 -0700 (PDT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6E6D243FEA for ; Sun, 31 Aug 2003 13:10:08 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.9/8.12.9) with ESMTP id h7VKA8Up027715 for ; Sun, 31 Aug 2003 13:10:08 -0700 (PDT) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.9/8.12.9/Submit) id h7VKA8Kh027714; Sun, 31 Aug 2003 13:10:08 -0700 (PDT) Resent-Date: Sun, 31 Aug 2003 13:10:08 -0700 (PDT) Resent-Message-Id: <200308312010.h7VKA8Kh027714@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, walter@pelissero.de Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 36DBB16A4BF for ; Sun, 31 Aug 2003 13:00:23 -0700 (PDT) Received: from webmail.tiscali.de (relay1.tiscali.de [62.26.116.129]) by mx1.FreeBSD.org (Postfix) with ESMTP id DE27643FEA for ; Sun, 31 Aug 2003 13:00:21 -0700 (PDT) (envelope-from walter@pelissero.de) Received: from daemon.home.loc (62.246.19.246) by webmail.tiscali.de (6.7.019) id 3F2FA201007AA936 for FreeBSD-gnats-submit@freebsd.org; Sun, 31 Aug 2003 22:00:20 +0200 Received: from hyde.home.loc (hyde.home.loc [10.0.0.2]) by daemon.home.loc (8.12.9/8.12.8) with ESMTP id h7VJwijl001343 for ; Sun, 31 Aug 2003 21:58:45 +0200 (CEST) (envelope-from wcp@hyde.home.loc) Received: from hyde.home.loc (localhost [127.0.0.1]) by hyde.home.loc (8.12.9/8.12.8) with ESMTP id h7VJwhZf074719 for ; Sun, 31 Aug 2003 21:58:43 +0200 (CEST) (envelope-from wcp@hyde.home.loc) Received: (from wcp@localhost) by hyde.home.loc (8.12.9/8.12.6/Submit) id h7VJwg5a074718; Sun, 31 Aug 2003 21:58:42 +0200 (CEST) (envelope-from wcp) Message-Id: <200308311958.h7VJwg5a074718@hyde.home.loc> Date: Sun, 31 Aug 2003 21:58:42 +0200 (CEST) From: "Walter C. Pelissero" To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: kern/56250: ums doesn't work with MCT based PS/2 converters X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: walter@pelissero.de List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 Aug 2003 20:10:10 -0000 >Number: 56250 >Category: kern >Synopsis: ums doesn't work with MCT based PS/2 converters >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Aug 31 13:10:07 PDT 2003 >Closed-Date: >Last-Modified: >Originator: Walter C. Pelissero >Release: FreeBSD 4.9-PRERELEASE i386 >Organization: >Environment: System: FreeBSD hyde.home.loc 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #28: Sun Aug 31 14:33:47 CEST 2003 root@hyde.home.loc:/.amd_mnt/daemon/host/usr/src/sys/compile/PCG-XG9 i386 >Description: Mice connected to a MCT Corp PS/2 converter don't work. This seems to be due to a test in ums.c. Changing the test the device works. >How-To-Repeat: Connect to a MCT based USB->PS/2 converter a PS/2 mouse and try to use it. >Fix: The following patch solves the problem, but the possible side effects are unknown to me. For instance, what happens if sc->sc_ibuf[0] != sc->sc_iid ? --- /sys/dev/usb/ums.c Wed Nov 6 21:23:50 2002 +++ ums.c Sun Aug 31 15:08:52 2003 @@ -428,10 +428,8 @@ } ibuf = sc->sc_ibuf; - if (sc->sc_iid) { - if (*ibuf++ != sc->sc_iid) - return; - } + if (sc->sc_iid) + ibuf++; dx = hid_get_data(ibuf, &sc->sc_loc_x); dy = -hid_get_data(ibuf, &sc->sc_loc_y); >Release-Note: >Audit-Trail: >Unformatted: