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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/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/led
Date:		August 2011
Contact:	linux-input@vger.kernel.org
Description:
		Attribute group for control of the status LEDs and the OLED
		displays found on the Wacom Intuos 4 M, L, and XL tablets. This
		attribute group is not available for other Wacom tablets.
		Therefore its presence implicitly signifies the presence of
		said LEDs and OLED displays on the tablet device.

What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status0_luminance
Date:		August 2011
Contact:	linux-input@vger.kernel.org
Description:
		Writing to this file sets the status LED luminance (0..127)
		when the stylus does not touch the tablet surface, and no
		button is pressed on the stylus.

What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status1_luminance
Date:		August 2011
Contact:	linux-input@vger.kernel.org
Description:
		Writing to this file sets the status LED luminance (0..127)
		when the stylus touches the tablet surface, or any button is
		pressed on the stylus.

What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status_led_select
Date:		August 2011
Contact:	linux-input@vger.kernel.org
Description:
		Writing to this file sets which one of the four status LEDs is
		active (0..3). The other three LEDs are always inactive.  By
		means of specifying "-1" it is possible to set all status LEDs
		to inactive.

What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/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/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/button<n>_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.