7f26c970b4
Add sub-driver for the backlights on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels and ambient-light-sensor and pwm input control. [akpm@linux-foundation.org: fix warning] [akpm@linux-foundation.org: fix the type of `mode'] Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Rob Landley <rob@landley.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
48 lines
1.3 KiB
Text
48 lines
1.3 KiB
Text
What: /sys/class/backlight/<backlight>/als_channel
|
|
Date: May 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Get the ALS output channel used as input in
|
|
ALS-current-control mode (0, 1), where
|
|
|
|
0 - out_current0 (backlight 0)
|
|
1 - out_current1 (backlight 1)
|
|
|
|
What: /sys/class/backlight/<backlight>/als_en
|
|
Date: May 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Enable ALS-current-control mode (0, 1).
|
|
|
|
What: /sys/class/backlight/<backlight>/id
|
|
Date: April 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Get the id of this backlight (0, 1).
|
|
|
|
What: /sys/class/backlight/<backlight>/linear
|
|
Date: April 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Set the brightness-mapping mode (0, 1), where
|
|
|
|
0 - exponential mode
|
|
1 - linear mode
|
|
|
|
What: /sys/class/backlight/<backlight>/pwm
|
|
Date: April 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Set the PWM-input control mask (5 bits), where
|
|
|
|
bit 5 - PWM-input enabled in Zone 4
|
|
bit 4 - PWM-input enabled in Zone 3
|
|
bit 3 - PWM-input enabled in Zone 2
|
|
bit 2 - PWM-input enabled in Zone 1
|
|
bit 1 - PWM-input enabled in Zone 0
|
|
bit 0 - PWM-input enabled
|