From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Dyer Subject: [PATCH v1 08/10] Input: atmel_mxt_ts - don't report zero pressure from T9 Date: Fri, 20 Jul 2018 22:51:20 +0100 Message-ID: <20180720215122.23558-8-nick@shmanahar.org> References: <20180720215122.23558-1-nick@shmanahar.org> Return-path: In-Reply-To: <20180720215122.23558-1-nick@shmanahar.org> Sender: linux-kernel-owner@vger.kernel.org To: Dmitry Torokhov Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Chris Healy , Nikita Yushchenko , Lucas Stach , Nick Dyer List-Id: linux-input@vger.kernel.org From: Nick Dyer If T9.CTRL DISAMP is set, then pressure is reported as zero. This means some app layers (eg tslib) will ignore the contact. Signed-off-by: Nick Dyer --- drivers/input/touchscreen/atmel_mxt_ts.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 2d1fddafb7f9..d7023d261458 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -843,6 +843,10 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) mxt_input_sync(data); } + /* if active, pressure must be non-zero */ + if (!amplitude) + amplitude = MXT_PRESSURE_DEFAULT; + /* Touch active */ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1); input_report_abs(input_dev, ABS_MT_POSITION_X, x); -- 2.17.1