[PATCH 031/241] Input: tsc40 - remove wrong announcement of pressure support

Herton Ronaldo Krzesinski herton.krzesinski at canonical.com
Thu Dec 13 13:56:36 UTC 2012 -stable review patch.  If anyone has any objections, please let me know.


From: Rolf Eike Beer <eike-kernel at sf-tec.de>

commit 32ed1911fc79908d704023317d4ddeb3883fd07e upstream.

The tsc40 driver announces it supports the pressure event, but will never
send one. The announcement will cause tslib to wait for such events and
sending all touch events with a pressure of 0. Removing the announcement
will make tslib fall back to emulating the pressure on touch events so
everything works as expected.

Signed-off-by: Rolf Eike Beer <eike-kernel at sf-tec.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov at gmail.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
 drivers/input/touchscreen/tsc40.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c
index 63209aa..eb96f16 100644
--- a/drivers/input/touchscreen/tsc40.c
+++ b/drivers/input/touchscreen/tsc40.c
@@ -107,7 +107,6 @@ static int tsc_connect(struct serio *serio, struct serio_driver *drv)
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 	input_set_abs_params(ptsc->dev, ABS_X, 0, 0x3ff, 0, 0);
 	input_set_abs_params(ptsc->dev, ABS_Y, 0, 0x3ff, 0, 0);
-	input_set_abs_params(ptsc->dev, ABS_PRESSURE, 0, 0, 0, 0);
 	serio_set_drvdata(serio, ptsc);

More information about the kernel-team mailing list