From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753842Ab1GZXDr (ORCPT ); Tue, 26 Jul 2011 19:03:47 -0400 Received: from adelie.canonical.com ([91.189.90.139]:43906 "EHLO adelie.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752159Ab1GZXDo (ORCPT ); Tue, 26 Jul 2011 19:03:44 -0400 Message-ID: <4E2F47C7.4060702@canonical.com> Date: Tue, 26 Jul 2011 16:03:35 -0700 From: Chase Douglas User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.18) Gecko/20110617 Thunderbird/3.1.11 MIME-Version: 1.0 To: Dmitry Torokhov CC: Daniel Kurtz , rydberg@euromail.se, rubini@cvml.unipv.it, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, derek.foreman@collabora.co.uk, daniel.stone@collabora.co.uk, olofj@chromium.org Subject: Re: [PATCH 8/9 v2] Input: add BTN_TOOL_QUINTTAP for reporting 5 fingers on touchpad References: <1311169146-20066-1-git-send-email-djkurtz@chromium.org> <1311169146-20066-9-git-send-email-djkurtz@chromium.org> <20110725082918.GC22937@core.coreip.homeip.net> <20110725181645.GA6876@core.coreip.homeip.net> In-Reply-To: <20110725181645.GA6876@core.coreip.homeip.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/25/2011 11:16 AM, Dmitry Torokhov wrote: > On Mon, Jul 25, 2011 at 05:14:22PM +0800, Daniel Kurtz wrote: >> On Mon, Jul 25, 2011 at 4:29 PM, Dmitry Torokhov >> wrote: >>> >>> On Wed, Jul 20, 2011 at 09:39:05PM +0800, djkurtz@chromium.org wrote: >>>> From: Daniel Kurtz >>>> >>> >>> Do we know what we want to do with this gesture? Because if not I'd >>> rather not merge it for now, until there are real users. >> >> And do what instead? >> Report 5 fingers with BTN_TOOL_QUADTAP? >> > > That, or nothing... The fact that the device can report 5 finger touch > does not mean that anybody cares about this. The uTouch gesture stack supports up to 5 touch gestures, and although most of them are either hard to do on a trackpad or are not possible with this driver, I can think of uses for 5 finger tap. Unity uses four finger tap quite effectively I believe. There is a meaningful limit to this: five fingers on a human hand. It seems more arbitrary to stick the protocol limit at four fingers. -- Chase