This is a note to let you know that I've just added the patch titled
Input: trackpoint - assume 3 buttons when buttons detection fails
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-trackpoint-assume-3-buttons-when-buttons-detection-fails.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 293b915fd9bebf33cdc906516fb28d54649a25ac Mon Sep 17 00:00:00 2001
From: Oscar Campos <oscar.campos@xxxxxxxxxxxxxx>
Date: Tue, 18 Jul 2017 17:20:36 -0700
Subject: Input: trackpoint - assume 3 buttons when buttons detection fails
From: Oscar Campos <oscar.campos@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Acked-by: Peter Hutterer <peter.hutterer@xxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Aaron Ma <aaron.ma@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/mouse/trackpoint.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -381,8 +381,8 @@ int trackpoint_detect(struct psmouse *ps
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);
Patches currently in stable-queue which might be from oscar.campos@xxxxxxxxxxxxxx are
queue-4.4/input-trackpoint-assume-3-buttons-when-buttons-detection-fails.patch