It was incorrectly stated that als_setting is to enable and disable the ambient light sensor on supported system rather than setting a threshold value. Correct the description and add a note to make more clear what could be the effect of changing als_setting.
Reported-by: Brian Norris <[email protected]> Signed-off-by: Gabriele Mazzotta <[email protected]> --- Documentation/ABI/testing/sysfs-platform-dell-laptop | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-platform-dell-laptop b/Documentation/ABI/testing/sysfs-platform-dell-laptop index 7969443..a40c217 100644 --- a/Documentation/ABI/testing/sysfs-platform-dell-laptop +++ b/Documentation/ABI/testing/sysfs-platform-dell-laptop @@ -4,10 +4,12 @@ KernelVersion: 3.19 Contact: Gabriele Mazzotta <[email protected]>, Pali Rohár <[email protected]> Description: - This file allows to control the automatic keyboard - illumination mode on some systems that have an ambient - light sensor. Write 1 to this file to enable the auto - mode, 0 to disable it. + This file allows to set at which value reported by the + ambient light sensor the keyboard backlight has to be + turned on or off. + + Note that the 'als' trigger must be supported and enabled + for this setting to have any effect. What: /sys/class/leds/dell::kbd_backlight/start_triggers Date: December 2014 @@ -32,6 +34,13 @@ Description: Note that not all the available triggers can be configured. + Note also that enabling the 'als' trigger could simply + alter the behavior of the other triggers and not allow + the ambient light sensor control the keyboard illumination + independently. It could prevent other triggers from turning + the keyboard backlight on or force them to turn it off + depending on the current ambient light and als_setting. + What: /sys/class/leds/dell::kbd_backlight/stop_timeout Date: December 2014 KernelVersion: 3.19 -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
