Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756969Ab0LRQ5B (ORCPT ); Sat, 18 Dec 2010 11:57:01 -0500 Received: from mail-yx0-f174.google.com ([209.85.213.174]:49202 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756797Ab0LRQ47 convert rfc822-to-8bit (ORCPT ); Sat, 18 Dec 2010 11:56:59 -0500 MIME-Version: 1.0 In-Reply-To: References: <1292683981-6908-1-git-send-email-rydberg@euromail.se> <1292683981-6908-2-git-send-email-rydberg@euromail.se> Date: Sat, 18 Dec 2010 10:56:59 -0600 Message-ID: Subject: Re: [PATCH 1/4] Input: synaptics - add multitouch packet support From: Chris Bagwell To: Henrik Rydberg Cc: Dmitry Torokhov , Jiri Kosina , Chase Douglas , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Takashi Iwai Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1447 Lines: 32 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. Chris -- 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/