Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757029Ab0LRRGq (ORCPT ); Sat, 18 Dec 2010 12:06:46 -0500 Received: from ch-smtp02.sth.basefarm.net ([80.76.149.213]:39555 "EHLO ch-smtp02.sth.basefarm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753147Ab0LRRGo (ORCPT ); Sat, 18 Dec 2010 12:06:44 -0500 From: "Henrik Rydberg" Date: Sat, 18 Dec 2010 18:06:03 +0100 To: Chris Bagwell Cc: Dmitry Torokhov , Jiri Kosina , Chase Douglas , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Takashi Iwai Subject: Re: [PATCH 1/4] Input: synaptics - add multitouch packet support Message-ID: <20101218170603.GA1498@polaris.bitmath.org> References: <1292683981-6908-1-git-send-email-rydberg@euromail.se> <1292683981-6908-2-git-send-email-rydberg@euromail.se> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-Originating-IP: 83.248.200.95 X-Scan-Result: No virus found in message 1PU0ER-0000ME-9P. X-Scan-Signature: ch-smtp02.sth.basefarm.net 1PU0ER-0000ME-9P 24621162a1c5244781e03aa5a171023a Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1638 Lines: 35 On Sat, Dec 18, 2010 at 10:56:59AM -0600, Chris Bagwell wrote: > On Sat, Dec 18, 2010 at 10:55 AM, Chris Bagwell wrote: > > On Sat, Dec 18, 2010 at 8:52 AM, Henrik Rydberg wrote: > >> From: Chase Douglas > >> > >> Synaptics 2.7 series of touchpads support a mode for reporting 2 sets > >> of X/Y/Pressure data (multi-touch). ?These same devices default mode > >> report single finger data and do not report finger counts. > >> > >> Enabling MT mode makes finger count reporting start working in same > >> fashion as touchpads that claim that capability. Up to three fingers > >> can be reported this way. > >> > >> While in MT mode and two or three fingers are touching, two sets of > >> data are sent. ?The first is a new format buffer with lower resolution > >> reporting of stationary finger and the second is standard data format > >> reporting movement. > > > > We should probably update this comment and remove parts that mention > > stationary and movement. ?It appears to be doing finger tracking and > > first packet is always first touch... except we are getting reports > > that clickpads/integrated button pads may not be consistently like > > this. > > > > Sorry. Not first packet but higher resolution/second packet. Not for all devices, it seems - at least not mine, which is not a clickpad. Henrik -- 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/