Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755446AbYKKEVq (ORCPT ); Mon, 10 Nov 2008 23:21:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752591AbYKKEVg (ORCPT ); Mon, 10 Nov 2008 23:21:36 -0500 Received: from ipx-119-252-190-80.ipxserver.de ([80.190.252.119]:47916 "EHLO ipx10616.ipxserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752308AbYKKEVf (ORCPT ); Mon, 10 Nov 2008 23:21:35 -0500 Date: Tue, 11 Nov 2008 14:20:09 +1000 From: Peter Hutterer To: Henrik Rydberg Cc: Dmitry Torokhov , Andrew Morton , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] input: Add a detailed multi-touch finger data report protocol Message-ID: <20081111042009.GC6776@dingo.redhat.com> References: <49142351.9080805@euromail.se> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49142351.9080805@euromail.se> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1660 Lines: 37 On Fri, Nov 07, 2008 at 12:15:29PM +0100, Henrik Rydberg wrote: > In order to utilize the full power of the new multi-touch devices, a > way to report detailed finger data to user space is needed. This patch > adds a multi-touch (MT) protocol which allows drivers to report details > for an arbitrary number of fingers. [...] > /* We avoid low common keys in module aliases so they don't get huge. */ > #define KEY_MIN_INTERESTING KEY_MUTE > #define KEY_MAX 0x2ff > @@ -642,6 +645,15 @@ struct input_absinfo { > #define ABS_TOOL_WIDTH 0x1c > #define ABS_VOLUME 0x20 > #define ABS_MISC 0x28 > +#define ABS_MT_TOUCH 0x30 /* Diameter of touching circle */ > +#define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */ > +#define ABS_MT_TOUCH_MINOR 0x31 /* Minor axis of touching ellipse */ > +#define ABS_MT_WIDTH 0x32 /* Diameter of approaching circle */ > +#define ABS_MT_WIDTH_MAJOR 0x32 /* Major axis of approaching ellipse */ > +#define ABS_MT_WIDTH_MINOR 0x33 /* Minor axis of approaching ellipse */ > +#define ABS_MT_ORIENTATION 0x34 /* Ellipse orientation */ > +#define ABS_MT_POSITION_X 0x35 /* Center X ellipse position */ > +#define ABS_MT_POSITION_Y 0x36 /* Center Y ellipse position */ > #define ABS_MAX 0x3f > #define ABS_CNT (ABS_MAX+1) is there hardware that can do finger identification? (i.e. thumb vs. index finger)? Should we accommodate for this? Cheers, Peter -- 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/