mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
401dea7f7a
Add sub-driver for the LEDs on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels, hardware accelerated blinking as well as ambient-light-sensor and pwm input control. 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> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
66 lines
1.5 KiB
Plaintext
66 lines
1.5 KiB
Plaintext
What: /sys/class/leds/<led>/als_channel
|
|
Date: May 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Set the ALS output channel to use as input in
|
|
ALS-current-control mode (1, 2), where
|
|
|
|
1 - out_current1
|
|
2 - out_current2
|
|
|
|
What: /sys/class/leds/<led>/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/leds/<led>/falltime
|
|
What: /sys/class/leds/<led>/risetime
|
|
Date: April 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Set the pattern generator fall and rise times (0..7), where
|
|
|
|
0 - 2048 us
|
|
1 - 262 ms
|
|
2 - 524 ms
|
|
3 - 1.049 s
|
|
4 - 2.097 s
|
|
5 - 4.194 s
|
|
6 - 8.389 s
|
|
7 - 16.78 s
|
|
|
|
What: /sys/class/leds/<led>/id
|
|
Date: April 2012
|
|
KernelVersion: 3.5
|
|
Contact: Johan Hovold <jhovold@gmail.com>
|
|
Description:
|
|
Get the id of this led (0..3).
|
|
|
|
What: /sys/class/leds/<led>/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/leds/<led>/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
|