HID: wacom: Add LED selector control for Wacom Intuos4 WL
Add sysfs attribute to control LED selector on Wacom Intuos4. There are 4
different LEDs on the tablet and they can be turned on by something like:
echo 50 > /sys/class/leds/(device # here)\:selector\:1/brightness
Only one can be lit at a time. The brightness range is 0 to 127. This patch
also contains short ABI description.
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/ABI/testing/sysfs-driver-wacom b/Documentation/ABI/testing/sysfs-driver-wacom
index 0130d66..56c5455 100644
--- a/Documentation/ABI/testing/sysfs-driver-wacom
+++ b/Documentation/ABI/testing/sysfs-driver-wacom
@@ -9,6 +9,14 @@
or 0 otherwise. Writing to this file one of these values
switches reporting speed.
+What: /sys/class/leds/0005\:056A\:00BD.0001\:selector\:*/
+Date: May 2012
+Kernel Version: 3.5
+Contact: linux-bluetooth@vger.kernel.org
+Description:
+ LED selector for Intuos4 WL. There are 4 leds, but only one LED
+ can be lit at a time. Max brightness is 127.
+
What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/led
Date: August 2011
Contact: linux-input@vger.kernel.org