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Message-Id: <1459516012-8060-2-git-send-email-gabriele.mzt@gmail.com> Date: Fri, 1 Apr 2016 15:06:49 +0200 From: Gabriele Mazzotta <gabriele.mzt@...il.com> To: dmitry.torokhov@...il.com, benjamin.tissoires@...il.com Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, rydberg@...math.org, silverhammermba@...il.com, peter.hutterer@...-t.net, hdegoede@...hat.com, grafi@...fi.jp, oneukum@...e.de, Gabriele Mazzotta <gabriele.mzt@...il.com> Subject: [PATCH v4 1/4] input: synaptics - fix pressure values calculation on image sensors The pressure values retrieved from secondary packets was incorrectly shifted, making them lower than what they actually were. Since this only happened with secondary packets, the values reported when only one finger was present on the touchpad were correct. Signed-off-by: Gabriele Mazzotta <gabriele.mzt@...il.com> --- drivers/input/mouse/synaptics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index a41d832..01fccca 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -677,7 +677,7 @@ static void synaptics_parse_agm(const unsigned char buf[], agm->w = hw->w; agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; - agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; + agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 2; break; case 2: -- 2.8.0.rc3
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