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authorOscar Campos <oscar.campos@member.fsf.org>2017-07-18 17:20:36 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-07-18 17:28:47 -0700
commit293b915fd9bebf33cdc906516fb28d54649a25ac (patch)
tree94f8585280492f428f4c80ca2db8fe123cc31f09 /drivers/input
parentdda5202b001cb59b16a1d20d063edd71e12905b3 (diff)
Input: trackpoint - assume 3 buttons when buttons detection fails
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>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/mouse/trackpoint.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 922ea02edcc3..20b5b21c1bba 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -380,8 +380,8 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
return 0;
if (trackpoint_read(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);