On some systems after starting computer function alps_identify() does not detect
dual ALPS touchpad+trackstick device correctly and detect only touchpad.
Resetting ALPS device before identifiying it fixing this problem and both parts
touchpad and trackstick are detected.
Signed-off-by: Pali Rohár <pali.rohar@xxxxxxxxx>
Tested-by: Pali Rohár <pali.rohar@xxxxxxxxx>
Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/input/mouse/alps.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 35a49bf..1bd5aa1 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2403,6 +2403,8 @@ int alps_detect(struct psmouse *psmouse, bool set_properties)
{
struct alps_data dummy;
+ psmouse_reset(psmouse);
+
if (alps_identify(psmouse, &dummy) < 0)
return -1;
--
1.7.9.5
--
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