Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265037AbTFLWnz (ORCPT ); Thu, 12 Jun 2003 18:43:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265036AbTFLWnz (ORCPT ); Thu, 12 Jun 2003 18:43:55 -0400 Received: from twilight.ucw.cz ([81.30.235.3]:58048 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id S265035AbTFLWnk (ORCPT ); Thu, 12 Jun 2003 18:43:40 -0400 Date: Fri, 13 Jun 2003 00:57:09 +0200 From: Vojtech Pavlik To: Peter Berg Larsen Cc: Peter Osterlund , CaT , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Synaptics TouchPad driver for 2.5.70 Message-ID: <20030613005709.A27763@ucw.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from pebl@math.ku.dk on Fri, Jun 13, 2003 at 12:01:35AM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1953 Lines: 44 On Fri, Jun 13, 2003 at 12:01:35AM +0200, Peter Berg Larsen wrote: > > > > On Wed, Jun 11, 2003 at 10:48:14PM -0400, Joseph Fannin wrote: > > > > > Here is a new patch that sends ABS_ events to user space. I haven't > > > > > modified the XFree86 driver to handle this format yet, but I used > > > > > /dev/input/event* to verify that the driver generates correct data. > > > > CaT writes: > > > Aaaand... will I be able to transparently use my ps2 mouse and touchpad > > > without having to worry about what's plugged in at any one time? > > The short answer is no, if you still have the gateway laptop. > > > On 12 Jun 2003, Peter Osterlund wrote: > > It works on my computer at least. When loading the psmouse module I > > get this: > > > input: PS/2 Logitech Mouse on isa0060/serio2 > > input: Synaptics Synaptics TouchPad on isa0060/serio4 > > It works for you because it (your laptop) has active multiplexing. Without > active multiplexing I see no way of demultiplexing different mouse > protocols in mousedev. > > A guestdevice behind the touchpad also needs demultiplexing even with > activ multiplexing. This could be done in the synaptics driver but as the > guestdevice can be any device, the synaptics driver needs to know every > mouse protocol there is to demultiplex it. The synaptics driver sent does > not demultiplex a guestdevice. The synaptics driver, if it wished to demultiplex a true mouse protocol behind the pad without an active multiplexing controller, could easily create a new serio port, to which the psmouse driver would attach, detect, and drive the mouse. It's a bit crazy, but it should work. -- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/