From: Mathias Gottschlag Date: Sat, 7 Mar 2015 13:38:52 -0800 Subject: [6/6] Input: psmouse - disable "palm detection" in the focaltech driver Origin: https://git.kernel.org/linus/4eb8d6e7e5aa14572bc389e554aad9869188cdcd Apparently, the threshold for large contact area seems to be rather low on some devices, causing the touchpad to frequently freeze during normal usage. Because we do now know how we are supposed to use the value in question, this commit just drops the related code completely. Signed-off-by: Mathias Gottschlag Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/focaltech.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c index 891a271..23d2594 100644 --- a/drivers/input/mouse/focaltech.c +++ b/drivers/input/mouse/focaltech.c @@ -185,16 +185,6 @@ static void focaltech_process_abs_packet(struct psmouse *psmouse, state->pressed = (packet[0] >> 4) & 1; - /* - * packet[5] contains some kind of tool size in the most - * significant nibble. 0xff is a special value (latching) that - * signals a large contact area. - */ - if (packet[5] == 0xff) { - state->fingers[finger].valid = false; - return; - } - state->fingers[finger].x = ((packet[1] & 0xf) << 8) | packet[2]; state->fingers[finger].y = (packet[3] << 8) | packet[4]; state->fingers[finger].valid = true;