Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932092Ab2EDMyT (ORCPT ); Fri, 4 May 2012 08:54:19 -0400 Received: from mail-we0-f174.google.com ([74.125.82.174]:59011 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758037Ab2EDMyM (ORCPT ); Fri, 4 May 2012 08:54:12 -0400 From: "benjamin.tissoires" To: "benjamin.tissoires" , Dmitry Torokhov , Henrik Rydberg , Jiri Kosina , Stephane Chatty , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/5] input: Introduce MT_CENTER_X and MT_CENTER_Y Date: Fri, 4 May 2012 14:53:49 +0200 Message-Id: <1336136030-18503-5-git-send-email-benjamin.tissoires@gmail.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1336136030-18503-1-git-send-email-benjamin.tissoires@gmail.com> References: <1336136030-18503-1-git-send-email-benjamin.tissoires@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2991 Lines: 75 From: Benjamin Tissoires Microsoft published a new version of their multitouch specification. They introduced a new multitouch field: MT_CENTER_X|Y. Signed-off-by: Benjamin Tissoires --- Documentation/input/multi-touch-protocol.txt | 14 ++++++++++++-- include/linux/input.h | 8 +++++--- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt index 543101c..289951c 100644 --- a/Documentation/input/multi-touch-protocol.txt +++ b/Documentation/input/multi-touch-protocol.txt @@ -254,11 +254,21 @@ between. In such cases, the range of ABS_MT_ORIENTATION should be [0, 1] ABS_MT_POSITION_X -The surface X coordinate of the center of the touching ellipse. +The surface X coordinate of the point the user intended to touch. ABS_MT_POSITION_Y -The surface Y coordinate of the center of the touching ellipse. +The surface Y coordinate of the point the user intended to touch. + +ABS_MT_CENTER_X + +The surface X coordinate of the center of the touching ellipse. This field is +introduced by Windows 8 multitouch protocol. + +ABS_MT_CENTER_Y + +The surface Y coordinate of the center of the touching ellipse. This field is +introduced by Windows 8 multitouch protocol. ABS_MT_TOOL_TYPE diff --git a/include/linux/input.h b/include/linux/input.h index a816714..5b0dfe2 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -806,18 +806,20 @@ struct input_keymap_entry { #define ABS_MT_WIDTH_MAJOR 0x32 /* Major axis of approaching ellipse */ #define ABS_MT_WIDTH_MINOR 0x33 /* Minor axis (omit if circular) */ #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_MT_POSITION_X 0x35 /* X the user intended to touch */ +#define ABS_MT_POSITION_Y 0x36 /* Y the user intended to touch */ #define ABS_MT_TOOL_TYPE 0x37 /* Type of touching device */ #define ABS_MT_BLOB_ID 0x38 /* Group a set of packets as a blob */ #define ABS_MT_TRACKING_ID 0x39 /* Unique ID of initiated contact */ #define ABS_MT_PRESSURE 0x3a /* Pressure on contact area */ #define ABS_MT_DISTANCE 0x3b /* Contact hover distance */ +#define ABS_MT_CENTER_X 0x3c /* Center X ellipse position */ +#define ABS_MT_CENTER_Y 0x3d /* Center Y ellipse position */ #ifdef __KERNEL__ /* Implementation details, userspace should not care about these */ #define ABS_MT_FIRST ABS_MT_TOUCH_MAJOR -#define ABS_MT_LAST ABS_MT_DISTANCE +#define ABS_MT_LAST ABS_MT_CENTER_Y #endif #define ABS_MAX 0x3f -- 1.7.7.6 -- 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/