Date: Tue, 7 Oct 2008 15:54:20 +0200
From: Pavel Machek <pavel@suse.cz>
To: Rodolfo Giometti <giometti@enneenne.com>
Cc: linux-kernel@vger.kernel.org, Richard Purdie <rpurdie@rpsys.net>
Subject: Re: [PATCH V3] led: Backlight trigger for led subsystem
Message-ID: <20081007135420.GB1592@ucw.cz>
References: <1223374230-18413-1-git-send-email-giometti@enneenne.com>
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Hi!

> This patch set adds a new led trigger which emulates the backlight
> behaviour: the leds are turned off and on each time the display blanks
> and unblacks.
> 
> Since backlights are usually implemented with leds this patch set is
> useful for those drivers whose manage leds controller used as
> backlight controller.
> 
> The driver simply registers itself into the led subsystem and then the
> user may get backlight emulation by setting the "backlight"
> trigger. Moreover a driver, which usually manages more than one led,
> can use some leds as "led" and the others as "backlights" at user
> request.

We already have backlight subsystem, it can also handle display
brightness. Why not use that?


-- 
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