From 293b915fd9bebf33cdc906516fb28d54649a25ac Mon Sep 17 00:00:00 2001 From: Oscar Campos Date: Tue, 18 Jul 2017 17:20:36 -0700 Subject: [PATCH] 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 Acked-by: Peter Hutterer Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/trackpoint.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c index 922ea02..20b5b21 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); -- 2.7.4