linux-kernel - Re: [PATCH V4 1/2] introduce ALS sysfs class

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Message-ID: <20090825084501.GL29763@elf.ucw.cz>
Date:	Tue, 25 Aug 2009 10:45:01 +0200
From:	Pavel Machek <pavel@....cz>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	Greg KH <greg@...ah.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>
Subject: Re: [PATCH V4 1/2] introduce ALS sysfs class

On Tue 2009-08-25 15:18:13, Zhang Rui wrote:
> 
> ???Introduce ALS sysfs class.
> 
> ALS sysfs class provides a standard sysfs interface for
> Ambient Light Sensor devices.
> 
> please read Documentation/ABI/testing/sysfs-class-als for
> detailed sysfs designs.
> 
> Signed-off-by: Zhang Rui <rui.zhang@...el.com>

ACK.

> +What:		/sys/class/als/als[0-N]/display_adjustment
> +Date:		Aug. 2009
> +KernelVersion:	2.6.32
> +Contact:	Zhang Rui <rui.zhang@...el.com>
> +Description:	a relative percentages in order simplify the means
> +		by which these adjustments are applied in lieu of
> +		changes to the user???s display brightness preference.
> +		A value of 100% is used to indicate no display
> +		brightness adjustment.
> +		Values less than 100% indicate a negative adjustment
> +		(dimming); values greater than 100% indicate a positive
> +		adjustment (brightening).
> +		RO

And yes, I like the new interface much better.
									Pavel

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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