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| author | Aaron Armstrong Skomra <skomra@gmail.com> | 2019-05-11 00:31:16 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2019-05-17 13:56:06 +0200 |
| commit | d8e9806005f28bbb49899dab2068e3359e22ba35 (patch) | |
| tree | 60614b16841db73d6dec1c99b9c271b35720398a /Documentation/dcdbas.txt | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid... (diff) | |
| download | linux-d8e9806005f28bbb49899dab2068e3359e22ba35.tar.xz linux-d8e9806005f28bbb49899dab2068e3359e22ba35.zip | |
HID: wacom: generic: only switch the mode on devices with LEDs
Currently, the driver will attempt to set the mode on all
devices with a center button, but some devices with a center
button lack LEDs, and attempting to set the LEDs on devices
without LEDs results in the kernel error message of the form:
"leds input8::wacom-0.1: Setting an LED's brightness failed (-32)"
This is because the generic codepath erroneously assumes that the
BUTTON_CENTER usage indicates that the device has LEDs, the
previously ignored TOUCH_RING_SETTING usage is a more accurate
indication of the existence of LEDs on the device.
Fixes: 10c55cacb8b2 ("HID: wacom: generic: support LEDs")
Cc: <stable@vger.kernel.org> # v4.11+
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/dcdbas.txt')
0 files changed, 0 insertions, 0 deletions