From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: Synaptics Multi touch capabilities Date: Sun, 27 Dec 2009 02:13:31 -0800 Message-ID: <20091227101331.GE14655@core.coreip.homeip.net> References: <62e5edd40912230313r65593b0cmea9541ea7a246cfc@mail.gmail.com> <200912231032.32526.dmitry.torokhov@gmail.com> <62e5edd40912240254w19b0b6c6ye43e2805055bb0e5@mail.gmail.com> <20091225065642.GA19401@core.coreip.homeip.net> <62e5edd40912250354j55a1bbe0pcd151c106b6bdcdb@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-pw0-f42.google.com ([209.85.160.42]:37357 "EHLO mail-pw0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751394AbZL0KNg (ORCPT ); Sun, 27 Dec 2009 05:13:36 -0500 Received: by pwj9 with SMTP id 9so5866867pwj.21 for ; Sun, 27 Dec 2009 02:13:36 -0800 (PST) Content-Disposition: inline In-Reply-To: <62e5edd40912250354j55a1bbe0pcd151c106b6bdcdb@mail.gmail.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Erik =?iso-8859-1?Q?Andr=E9n?= Cc: linux-input@vger.kernel.org On Fri, Dec 25, 2009 at 12:54:16PM +0100, Erik Andr=E9n wrote: > 2009/12/25 Dmitry Torokhov : > > On Thu, Dec 24, 2009 at 11:54:27AM +0100, Erik Andr=E9n wrote: > >> 2009/12/23 Dmitry Torokhov : > >> > On Wednesday 23 December 2009 03:13:04 am Erik Andr=E9n wrote: > >> >> Hi, > >> >> I have a ASUS 1005HA netbook equipped with a Synaptics touch pa= d: > >> >> [ =A0 18.341491] Synaptics Touchpad, model: 1, fw: 7.2, id: 0x1= a0b1, > >> >> caps: 0xd04731/0xa40000 > >> >> > >> >> In Linux, no multitouch capabilities are detected (Zoom, two an= d three > >> >> finger button presses etc.). > >> >> This all works with the same hardware in windows 7. > >> >> Is there a bug in the linux driver preventing multitouch to wor= k? > >> >> > >> > > >> > Linux Synaptics driver does not have full multitouch support (ye= t?). The 2- > >> > and 3- finger taps should work (provided that they are enabled i= n SYnaptics X > >> > driver) but there is no multiple finger tracking... > >> They don't. I've tried with the 1.1.2 and 1.2.0 version of the xor= g > >> synaptics driver. But if this is the issue I guess I should take t= his > >> inquiry to the proper xorg mailing list. > > > > Not yet, kernel needs to add support for this as well. > > > >> > >> > > >> > BTW, the capability 0xd04731 indicates that your hardware does n= ot report > >> > multi-finger taps. > >> > > >> I'm aware of that, but why does pinch and zoom then work in window= s 7? > >> Is it possible to emulate this with a single touch touchpad? > >> > > > > I think your touchpad is a fully multi-finger one, not just multi-f= inger > > tapping like older touchpads. Only multi-finger tapping is currentl= y > > supported by Synaptcs X driver. > > > Could you elaborate on what a multi-finger touchpad is? Multi-finger touchpad (or touchscreen) is a device that can recognize several objects touching the surface of the device and report separate sets of coordinates (and maybe more data) for every object. > The Synaptics PS/2 Touchpad Interface Guide, 3.2.6 states that two an= d > three fingers are only detected when the capMultiFinger capability is > detected which according to the driver isn't detected for this > touchpad. >=20 Apparently this guide is a bit obsolete. --=20 Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html