From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: Why Cypress does not upstream its trackpad driver? Date: Wed, 07 Nov 2012 16:15:49 -0800 Message-ID: <2208882.BvOrfBvj6F@dtor-d630.eng.vmware.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: Received: from mail-pb0-f46.google.com ([209.85.160.46]:50987 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752844Ab2KHAP4 (ORCPT ); Wed, 7 Nov 2012 19:15:56 -0500 In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: David Solda Cc: Troy Abercrombia , Kamal Mostafa , Ozan =?utf-8?B?w4dhxJ9sYXlhbg==?= , "linux-kernel@vger.kernel.org" , "linux-input@vger.kernel.org" , customercare , "mario_limonciello@dell.com" Hi David, On Wednesday, November 07, 2012 06:30:11 PM David Solda wrote: > Kamal, > > My name is Dave Solda and I would be happy to answer any other questions > that you have. Troy's response is correct however as in order to support > the default Linux mouse class, our firmware would also have to be modified > to do so, which cannot be done in system. Our packet protocol maxes out at > an 8 byte packet, which requires a change to the Linux standard in this > case. I am unable to parse this... I do not believe anyone asks you to change your firmware and if your protocol needs 8 bytes to transmit device state - that's fine. > Our goal in working with canonical was to provide something on Linux that > would support multi-touch and not only have default single finger movement > supported. > If I am mistaken and he Linux kernel would accept this, then we can proceed > to upstream, however all indications we have is that this patch would be > rejected. If you (or others on from the locus alias) have any inputs, I > would be happy to receive them. This really depends on whether the changes to the psmouse framework make sense or not. Please start submitting patches for review/discussion and we can go from there. Thanks. -- Dmitry