linuxdebug/Documentation/ABI/testing/sysfs-class-backlight-drive...

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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
===== ===========================