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Message-Id: <1407444232-4005-1-git-send-email-benjamin.tissoires@redhat.com> Date: Thu, 7 Aug 2014 16:43:52 -0400 From: Benjamin Tissoires <benjamin.tissoires@...hat.com> To: Dmitry Torokhov <dmitry.torokhov@...il.com>, Jiri Kosina <jkosina@...e.cz>, Ping Cheng <pinglinux@...il.com>, Jason Gerecke <killertofu@...il.com>, Przemo Firszt <przemo@...szt.eu> Cc: linux-kernel@...r.kernel.org, linux-input@...r.kernel.org Subject: [PATCH v2] Input - wacom: update the ABI doc according to latest changes Now the devices show up under hid no matter the connection (for USB and Bluetooth, not serial nor i2c). The USB devices can now be easily found under /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n> The Bluetooth devices could also be found under this path since their inclusion (April 2010), so this patch fixes the unprecise "hidraw*" path for them. The ABI has been unified while setting the LEDs and OLEDs. So Bluetooth devices lost their own LED selector but use the USB sysfs attribute. For OLEDs, Bluetooth devices handle only 1-bit images instead of 4 for USB. The documentation has been updated to match this. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com> --- changes in v2: - updated commit message to describe a little bit more the changes - updated the dates for the new path where we can find USB/Bluetooth devices Documentation/ABI/testing/sysfs-driver-wacom | 70 +++++++++++----------------- 1 file changed, 27 insertions(+), 43 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-driver-wacom b/Documentation/ABI/testing/sysfs-driver-wacom index 7fc7810..c4f0fed 100644 --- a/Documentation/ABI/testing/sysfs-driver-wacom +++ b/Documentation/ABI/testing/sysfs-driver-wacom @@ -1,48 +1,27 @@ -WWhat: /sys/class/hidraw/hidraw*/device/oled*_img -Date: June 2012 -Contact: linux-bluetooth@...r.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 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/speed Date: April 2010 Kernel Version: 2.6.35 Contact: linux-bluetooth@...r.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 + The /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/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@...r.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 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/led +Date: August 2014 Contact: linux-input@...r.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. + and XL (with LEDs and OLEDs), Intuos 4 WL, Intuos 5 (LEDs only), + Intuos Pro (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/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status0_luminance -Date: August 2011 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/status0_luminance +Date: August 2014 Contact: linux-input@...r.kernel.org Description: Writing to this file sets the status LED luminance (1..127) @@ -50,16 +29,16 @@ Description: 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/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status1_luminance -Date: August 2011 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/status1_luminance +Date: August 2014 Contact: linux-input@...r.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/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status_led0_select -Date: August 2011 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/status_led0_select +Date: August 2014 Contact: linux-input@...r.kernel.org Description: Writing to this file sets which one of the four (for Intuos 4 @@ -67,23 +46,23 @@ Description: 24HD) status LEDs is active (0..3). The other three LEDs on the same side are always inactive. -What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status_led1_select -Date: September 2011 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/status_led1_select +Date: August 2014 Contact: linux-input@...r.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/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/buttons_luminance -Date: August 2011 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/buttons_luminance +Date: August 2014 Contact: linux-input@...r.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 +What: /sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_led/button<n>_rawimg +Date: August 2014 Contact: linux-input@...r.kernel.org Description: When writing a 1024 byte raw image in Wacom Intuos 4 @@ -93,3 +72,8 @@ Description: 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. + When the Wacom Intuos 4 is connected over Bluetooth, the + image has to contain 256 bytes (64x32 px 1 bit colour). + The format is also scrambled, like in the USB mode, and it can + be summarized by converting 76543210 into GECA6420. + HGFEDCBA HFDB7531 -- 2.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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