From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262280AbTLWSsW (ORCPT ); Tue, 23 Dec 2003 13:48:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262283AbTLWSsV (ORCPT ); Tue, 23 Dec 2003 13:48:21 -0500 Received: from imf20aec.mail.bellsouth.net ([205.152.59.68]:10491 "EHLO imf20aec.mail.bellsouth.net") by vger.kernel.org with ESMTP id S262280AbTLWSsI (ORCPT ); Tue, 23 Dec 2003 13:48:08 -0500 From: "J.C. Wren" Reply-To: jcwren@jcwren.com To: linux-kernel@vger.kernel.org Subject: Re: Prevailence of PS/2 Active Muxed devices? Date: Tue, 23 Dec 2003 13:47:33 -0500 User-Agent: KMail/1.5.4 References: <20031223180429.GA11198@dreamland.darkstar.lan> <200312231325.39712.jcwren@jcwren.com> In-Reply-To: <200312231325.39712.jcwren@jcwren.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200312231347.33818.jcwren@jcwren.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Naturally, after spending 45 minutes looking through mouse and keyboard sources in 2.4.21 on the laptop, I find it in i8042.c in the 2.6 tree. Now to see if something can actually be done with it... --jc On Tuesday 23 December 2003 13:25 pm, J.C. Wren wrote: > I have an application where I'd like to specifically control which PS/2 > aux device data is sent/received from/to. Particularly, on a laptop that > has an integrated touch pad, I'd like to select the external mouse port. > > This document http://www.synaptics-uk.com/decaf/utilities/ps2-mux.PDF > describes what appears to be a rather well thought method for multiple aux > devices on a single KBC. > > Looking through the kernel sources, I see no handling for this. From a > big picture perspective, how does Linux handle a system with an integrated > mouse pad, and an external PS/2 mouse port? Is this whole Synaptics idea > dead, or is support for this planned, or even considered? Does any one > have any knowledge the number of KBCs with this muxing? > > Seeing some of the parties that partcipated in the standards, it would be > a touch surprising if it just completely died. > > --jc > > - > 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/