WWhat: /sys/class/hidraw/hidraw*/device/oled*_img Date: June 2012 Contact: linux-bluetooth@vger.kernel.org Description: The /sys/class/hidraw/hidraw*/device/oled*_img files control OLED mocro displays on Intuos4 Wireless tablet. Accepted image has to contain 256 bytes (64x32 px 1 bit colour). The format is the same as PBM image 62x32px without header (64 bits per horizontal line, 32 lines). An example of setting OLED No. 0: dd bs=256 count=1 if=img_file of=[path to oled0_img]/oled0_img The attribute is read only and no local copy of the image is stored. What: /sys/class/hidraw/hidraw*/device/speed Date: April 2010 Kernel Version: 2.6.35 Contact: linux-bluetooth@vger.kernel.org Description: The /sys/class/hidraw/hidraw*/device/speed file controls reporting speed of Wacom bluetooth tablet. Reading from this file returns 1 if tablet reports in high speed mode 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/-:./wacom_led/led Date: August 2011 Contact: linux-input@vger.kernel.org Description: Attribute group for control of the status LEDs and the OLEDs. This attribute group is only available for Intuos 4 M, L, and XL (with LEDs and OLEDs), Intuos 5 (LEDs only), and Cintiq 21UX2 and Cintiq 24HD (LEDs only). Therefore its presence implicitly signifies the presence of said LEDs and OLEDs on the tablet device. What: /sys/bus/usb/devices/-:./wacom_led/status0_luminance Date: August 2011 Contact: linux-input@vger.kernel.org Description: Writing to this file sets the status LED luminance (1..127) when the stylus does not touch the tablet surface, and no button is pressed on the stylus. This luminance level is normally lower than the level when a button is pressed. What: /sys/bus/usb/devices/-:./wacom_led/status1_luminance Date: August 2011 Contact: linux-input@vger.kernel.org Description: Writing to this file sets the status LED luminance (1..127) when the stylus touches the tablet surface, or any button is pressed on the stylus. What: /sys/bus/usb/devices/-:./wacom_led/status_led0_select Date: August 2011 Contact: linux-input@vger.kernel.org Description: Writing to this file sets which one of the four (for Intuos 4 and Intuos 5) or of the right four (for Cintiq 21UX2 and Cintiq 24HD) status LEDs is active (0..3). The other three LEDs on the same side are always inactive. What: /sys/bus/usb/devices/-:./wacom_led/status_led1_select Date: September 2011 Contact: linux-input@vger.kernel.org Description: Writing to this file sets which one of the left four (for Cintiq 21UX2 and Cintiq 24HD) status LEDs is active (0..3). The other three LEDs on the left are always inactive. What: /sys/bus/usb/devices/-:./wacom_led/buttons_luminance Date: August 2011 Contact: linux-input@vger.kernel.org Description: Writing to this file sets the overall luminance level (0..15) of all eight button OLED displays. What: /sys/bus/usb/devices/-:./wacom_led/button_rawimg Date: August 2011 Contact: linux-input@vger.kernel.org Description: When writing a 1024 byte raw image in Wacom Intuos 4 interleaving format to the file, the image shows up on Button N of the device. The image is a 64x32 pixel 4-bit gray image. The 1024 byte binary is split up into 16x 64 byte chunks. Each 64 byte chunk encodes the image data for two consecutive lines on the display. The low nibble of each byte contains the first line, and the high nibble contains the second line.