From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753295Ab0JKHkk (ORCPT ); Mon, 11 Oct 2010 03:40:40 -0400 Received: from ch-smtp01.sth.basefarm.net ([80.76.149.212]:39374 "EHLO ch-smtp01.sth.basefarm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752760Ab0JKHki (ORCPT ); Mon, 11 Oct 2010 03:40:38 -0400 Message-ID: <4CB2BF68.80302@euromail.se> Date: Mon, 11 Oct 2010 09:40:24 +0200 From: Henrik Rydberg User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100922 Thunderbird/3.1.4 MIME-Version: 1.0 To: Takashi Iwai CC: Dmitry Torokhov , Chase Douglas , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] Input: synaptics - multitouch and multifinger support References: <1286549880-32580-1-git-send-email-chase.douglas@canonical.com> <4CB17019.7070002@euromail.se> <20101010205932.GB18455@core.coreip.homeip.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Originating-IP: 83.248.196.134 X-Scan-Result: No virus found in message 1P5Czj-0003Iq-5e. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1P5Czj-0003Iq-5e 9f2f73cc5093a50fb9cf305904f7e8cb Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/11/2010 09:28 AM, Takashi Iwai wrote: [...] > Right, but it's pretty hard to know whether it works really for all > machines, simply because the current MT-detection is nothing but a > pure guess work. As mentioned in another mail, there are devices that > have no this bit but reports multi-finger detections without > tracking. So, there are definitely other things to be checked. > > Thus, I'm inclined to add a module option, at least, for *disabling* > MT for non-working machines. Also, another question is whether it's > safe to enable MT even for user-space that don't understand MT. Yes, you can add MT support on top of the ST protocol of an existing driver. Henrik