On Thu, Aug 06, 2009 at 04:31:38PM +0800, Zhang Rui wrote: > > Introduce ALS sysfs class device. > > ALS sysfs class device provides a standard sysfs interface > for Ambient Light Sensor devices. > > Only two sysfs I/F are introduced currently. > /sys/class/als/alsX/illuminance: > indicates the amount of light incident upon a specified surface area. > /sys/class/als/alsX/mappings: > exports ambient light illuminance to display luminance mappings > that can be used by an OS to calibrate its ambient light policy > for a given sensor configuration. > The OS can use this information to extrapolate an ALS response curve > - noting that these values may be treated differently depending on the > OS implementation but should be used in some form to calibrate ALS policy. > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > --- > Documentation/als/sysfs.txt | 138 ++++++++++++++++++++++ This needs to be in Documentation/ABI instead. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
