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| author | Hans de Goede <hdegoede@redhat.com> | 2014-03-26 21:30:52 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-03-26 21:33:58 +0100 |
| commit | 6797b39e6f6f34c74177736e146406e894b9482b (patch) | |
| tree | f834ae0e2b8e8c72233bbb534f3e0f8cae26d707 /drivers | |
| parent | Input: da9052_onkey - use correct register bit for key status (diff) | |
| download | linux-6797b39e6f6f34c74177736e146406e894b9482b.tar.xz linux-6797b39e6f6f34c74177736e146406e894b9482b.zip | |
Input: cypress_ps2 - don't report as a button pads
The cypress PS/2 trackpad models supported by the cypress_ps2 driver
emulate BTN_RIGHT events in firmware based on the finger position, as part
of this no motion events are sent when the finger is in the button area.
The INPUT_PROP_BUTTONPAD property is there to indicate to userspace that
BTN_RIGHT events should be emulated in userspace, which is not necessary
in this case.
When INPUT_PROP_BUTTONPAD is advertised userspace will wait for a motion
event before propagating the button event higher up the stack, as it needs
current abs x + y data for its BTN_RIGHT emulation. Since in the
cypress_ps2 pads don't report motion events in the button area, this means
that clicks in the button area end up being ignored, so
INPUT_PROP_BUTTONPAD actually causes problems for these touchpads, and
removing it fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=76341
Reported-by: Adam Williamson <awilliam@redhat.com>
Tested-by: Adam Williamson <awilliam@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/mouse/cypress_ps2.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c index 87095e2f5153..8af34ffe208b 100644 --- a/drivers/input/mouse/cypress_ps2.c +++ b/drivers/input/mouse/cypress_ps2.c @@ -409,7 +409,6 @@ static int cypress_set_input_params(struct input_dev *input, __clear_bit(REL_X, input->relbit); __clear_bit(REL_Y, input->relbit); - __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); __set_bit(EV_KEY, input->evbit); __set_bit(BTN_LEFT, input->keybit); __set_bit(BTN_RIGHT, input->keybit); |