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Tue, 04 Apr 2017 09:22:40 -0300 From: Mauro Carvalho Chehab To: linux-input@vger.kernel.org, Dmitry Torokhov Cc: Mauro Carvalho Chehab , Linux Doc Mailing List , Jonathan Corbet , Peter Hutterer , Hans Verkuil , Douglas Anderson , Ping Cheng , Kamil Debski Subject: [PATCH v2 34/37] input: add an EV_REL event for high-res vertical wheel Date: Tue, 4 Apr 2017 09:22:34 -0300 Message-Id: X-Mailer: git-send-email 2.9.3 In-Reply-To: <178fde32a3be0f5b05dc60787f6a96c704960bbb.1491308444.git.mchehab@s-opensource.com> References: <67ed7b07043e6fac94528044ebaf541d5deb7c82.1491308444.git.mchehab@s-opensource.com> <8e64d13bfc6952bc9370593ddc556a539f589654.1491308444.git.mchehab@s-opensource.com> <781a89b410f25a2fb39d081d1ebd696317b6d2c2.1491308444.git.mchehab@s-opensource.com> <6800b2c4e8f67b699c22533f7574d380b37cb6d6.1491308444.git.mchehab@s-opensource.com> <9f6ae6ca543f4aa294afd000b7c8a8f49b2e8382.1491308444.git.mchehab@s-opensource.com> <00ec4ed3ae000ee03c3fd725a5fadf33c1353d16.1491308444.git.mchehab@s-opensource.com> <9794ec8a2147f66e9e183f612fa7e834c9245dd9.1491308444.git.mchehab@s-opensource.com> <3bb792c867ec11d1e5b998b2d44e99fbd654ff95.1491308444.git.mchehab@s-opensource.com> <95dd0d035385dac833029e1db56846f02b3ae69c.1491308444.git.mchehab@s-opensource.com> <3efc02b3379dc908bfc0ade34185469295fee2bc.1491308444.git.mchehab@s-opensource.com> <9b1b818d7cde485713aced6b077f0e276a24bddd.1491308444.git.mchehab@s-opensource.com> <8e0ef882aa235e4e6e758662dc434567266fb541.1491308444.git.mchehab@s-opensource.com> <23b1473a9202301d9fdb8f07564467e3091e9810.1491308444.git.mchehab@s-opensource.com> <8606760958a9fbf4cd032f66003d6074e0463584.1491308444.git.mchehab@s-opensource.com> <4b1b04eebf96c72c4e8adee8232077ba89edca6c.1491308444.git.mchehab@s-opensource.com> <3552e3986d3848001b89449926d04f44930c681e.1491308444.git.mchehab@s-opensource.com> <226042dcaf8bc66f46abe97d235904dce8962bd1.1491308444.git.mchehab@s-opensource.com> <679c283194489e852074900b0133b5b6acd9395f.1491308444.git.mchehab@s-opensource.com> <64a9b32549546f6a5b1a5d95fcae550f98ace1d7.1491308444.git.mchehab@s-opensource.com> <55d263f13237495276213de295ae1c6d67f0588b.1491308444.git.mchehab@s-opensource.com> <026c16b07bc58fc2b4b8f2ed6ba1eb4d9f8f37b1.1491308444.git.mchehab@s-opensource.com> <178fde32a3be0f5b05dc60787f6a96c704960bbb.1491308444.git.mchehab@s-opensource.com> In-Reply-To: <67ed7b07043e6fac94528044ebaf541d5deb7c82.1491308444.git.mchehab@s-opensource.com> References: <67ed7b07043e6fac94528044ebaf541d5deb7c82.1491308444.git.mchehab@s-opensource.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP As some devices can produce either low-res or high-res vertical wheel EV_REL events, add a new event to allow userspace to distinguish between them. Signed-off-by: Mauro Carvalho Chehab --- Documentation/input/event-codes.rst | 16 +++++++++++++--- include/uapi/linux/input-event-codes.h | 1 + 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/Documentation/input/event-codes.rst b/Documentation/input/event-codes.rst index 92db50954169..0c8591d39bc6 100644 --- a/Documentation/input/event-codes.rst +++ b/Documentation/input/event-codes.rst @@ -185,10 +185,20 @@ instead of EV_REL codes. A few EV_REL codes have special meanings: -* REL_WHEEL, REL_HWHEEL: +* REL_WHEEL: - - These codes are used for vertical and horizontal scroll wheels, - respectively. + - These codes are used for vertical scroll wheels. + + - REL_WHEEL is for normal wheel operational mode, e. g. low-resolution + (line-based) scroll. + + - REL_HIRES_WHEEL should be used when the wheel has two resolutions and it + is in high-resolution mode, e. g. the same angular movement that would + produce a single REL_WHEEL will produce multiple REL_HIRES_WHEEL events. + +* REL_HWHEEL: + + - This code is used for horizontal scroll wheels. EV_ABS ------ diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h index 3af60ee69053..23b2d377af59 100644 --- a/include/uapi/linux/input-event-codes.h +++ b/include/uapi/linux/input-event-codes.h @@ -703,6 +703,7 @@ #define REL_DIAL 0x07 #define REL_WHEEL 0x08 #define REL_MISC 0x09 +#define REL_HIRES_WHEEL 0x0a #define REL_MAX 0x0f #define REL_CNT (REL_MAX+1)