Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753211AbYKGLPx (ORCPT ); Fri, 7 Nov 2008 06:15:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751895AbYKGLPn (ORCPT ); Fri, 7 Nov 2008 06:15:43 -0500 Received: from ch-smtp01.sth.basefarm.net ([80.76.149.212]:34338 "EHLO ch-smtp01.sth.basefarm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751809AbYKGLPl (ORCPT ); Fri, 7 Nov 2008 06:15:41 -0500 Message-ID: <49142351.9080805@euromail.se> Date: Fri, 07 Nov 2008 12:15:29 +0100 From: Henrik Rydberg User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: Dmitry Torokhov , Andrew Morton , linux-input@vger.kernel.org CC: linux-kernel@vger.kernel.org Subject: [PATCH] input: Add a detailed multi-touch finger data report protocol Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Originating-IP: 83.248.192.132 X-Scan-Result: No virus found in message 1KyPJT-0003qx-5I. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1KyPJT-0003qx-5I 18ba6e6edb1d1edf389d8351fc802d16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2496 Lines: 63 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. BTN_MT_REPORT_PACKET The driver presses this button to indicate the start of a packet of finger data. The button is released after the whole packet has been reported. BTN_MT_REPORT_FINGER The driver presses this button to indicate the start of a new finger. The button is released when the finger has been reported. In order to stay compatible with existing applications, the data reported in a finger packet must not be recognized as single-touch events. Therefore, a specific set of ABS_MT events is used instead. Signed-off-by: Henrik Rydberg --- include/linux/input.h | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/include/linux/input.h b/include/linux/input.h index b86fb55..c82dd42 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -590,6 +590,9 @@ struct input_absinfo { #define KEY_NUMERIC_STAR 0x20a #define KEY_NUMERIC_POUND 0x20b +#define BTN_MT_REPORT_PACKET 0x210 /* report multitouch packet data */ +#define BTN_MT_REPORT_FINGER 0x211 /* report multitouch finger data */ + /* 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) -- 1.5.6.3 -- 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/