diff options
| author | Oscar Campos <oscar.campos@member.fsf.org> | 2017-07-18 17:20:36 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-03-03 15:52:27 +0000 |
| commit | dd7ae1d08bc79aa104da89e4124de1231bbf16b1 (patch) | |
| tree | 90dc86f85a530cb020bb7e337b68735738c11ea4 | |
| parent | d01262f521931bc5c1cb2078c5136ab45b2226df (diff) | |
Input: trackpoint - assume 3 buttons when buttons detection fails
commit 293b915fd9bebf33cdc906516fb28d54649a25ac upstream.
Trackpoint buttons detection fails on ThinkPad 570 and 470 series,
this makes the middle button of the trackpoint to not being recogized.
As I don't believe there is any trackpoint with less than 3 buttons this
patch just assumes three buttons when the extended button information
read fails.
Signed-off-by: Oscar Campos <oscar.campos@member.fsf.org>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/input/mouse/trackpoint.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c index db511998fc4c..769af4ea1d25 100644 --- a/drivers/input/mouse/trackpoint.c +++ b/drivers/input/mouse/trackpoint.c @@ -377,8 +377,8 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties) return 0; if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) { - psmouse_warn(psmouse, "failed to get extended button data\n"); - button_info = 0; + psmouse_warn(psmouse, "failed to get extended button data, assuming 3 buttons\n"); + button_info = 0x33; } psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL); |