Input: trackpoint - assume 3 buttons when buttons detection fails
authorOscar Campos <oscar.campos@member.fsf.org>
Wed, 19 Jul 2017 00:20:36 +0000 (17:20 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Wed, 19 Jul 2017 00:28:47 +0000 (17:28 -0700)
commit293b915fd9bebf33cdc906516fb28d54649a25ac
tree94f8585280492f428f4c80ca2db8fe123cc31f09
parentdda5202b001cb59b16a1d20d063edd71e12905b3
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>
drivers/input/mouse/trackpoint.c