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Date: Mon, 31 Jan 2011 08:58:03 +0100
From: Sascha Hauer <s.hauer@pengutronix.de>
To: arden jay <arden.jay@gmail.com>
Cc: Wolfram Sang <w.sang@pengutronix.de>, Jean Delvare <khali@linux-fr.org>,
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        Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>,
        Shawn Guo <shawn.guo@freescale.com>
Subject: Re: [RFC] add pwmlib support
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On Sun, Jan 30, 2011 at 11:49:32AM +0800, arden jay wrote:
> Sorry, I'm confused about this.
> If it is for backlight control, why it don't go through led_class?

PWMs are not limited to backlight. As Jean pointed out they can be used
for fans (or more generally motors) aswell. Have a look at
drivers/leds/leds-pwm.c, it is a user of this pwm API.

Sascha

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