Re: [RFC PATCH V2 1/2] introduce ALS sysfs class

[Greg KH <greg@kroah.com>]

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@intel.com>
> ---
>  Documentation/als/sysfs.txt |  138 ++++++++++++++++++++++

This needs to be in Documentation/ABI instead.

thanks,

greg k-h