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Input: wacom - don't expose LED inactive option 

The LED also indicates the status of the tablet. Don't turn it off.

Reviewed-by: Eduard Hasenleithner <eduard@hasenleithner.at>
Tested-by: Eduard Hasenleithner <eduard@hasenleithner.at>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
hifive-unleashed-5.1
Ping Cheng 2011-10-04 23:50:42 -07:00 committed by Dmitry Torokhov
parent f4fa9a6d80
commit 77e82516a6
2 changed files with 6 additions and 8 deletions
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8
Documentation/ABI/testing/sysfs-driver-wacom
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@ -23,7 +23,7 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status0_lum
Date: August 2011
Contact: linux-input@vger.kernel.org
Description:
Writing to this file sets the status LED luminance (0..127)
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.
@ -32,7 +32,7 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status1_lum
Date: August 2011
Contact: linux-input@vger.kernel.org
Description:
Writing to this file sets the status LED luminance (0..127)
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.
@ -41,9 +41,7 @@ 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.
active (0..3). The other three LEDs are always inactive.
What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/buttons_luminance
Date: August 2011

6
drivers/input/tablet/wacom.h
View File

@ -115,9 +115,9 @@ struct wacom {
bool open;
char phys[32];
struct wacom_led {
u8 select; /* status led selector (0..3, -1=none) */
u8 llv; /* status led brightness no button */
u8 hlv; /* status led brightness button pressed */
u8 select; /* status led selector (0..3) */
u8 llv; /* status led brightness no button (1..127) */
u8 hlv; /* status led brightness button pressed (1..127) */
u8 img_lum; /* OLED matrix display brightness */
} led;
};