]> git.itanic.dy.fi Git - linux-stable/commit
HID: wacom: Force pen out of prox if no events have been received in a while
authorJason Gerecke <killertofu@gmail.com>
Fri, 15 Jul 2022 23:05:19 +0000 (16:05 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 May 2023 11:42:12 +0000 (12:42 +0100)
commitf84391a14901e80746187e05f3e13bbc6e89454a
tree8b8d0552cebc4aec4575c00298c72c2517d0c16b
parentf8041081069f594afd223af8ae2e7c5d2aa0e826
HID: wacom: Force pen out of prox if no events have been received in a while

commit 94b179052f95c294d83e9c9c34f7833cf3cd4305 upstream.

Prox-out events may not be reliably sent by some AES firmware. This can
cause problems for users, particularly due to arbitration logic disabling
touch input while the pen is in prox.

This commit adds a timer which is reset every time a new prox event is
received. When the timer expires we check to see if the pen is still in
prox and force it out if necessary. This is patterend off of the same
solution used by 'hid-letsketch' driver which has a similar problem.

Link: https://github.com/linuxwacom/input-wacom/issues/310
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Ping Cheng <pinglinux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hid/wacom.h
drivers/hid/wacom_sys.c
drivers/hid/wacom_wac.c