linux-kernel - Re: [PATCH] leds: driver for ab5500 high voltage leds

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Message-ID: <20111203214924.GA21511@sirena.org.uk>
Date:	Sat, 3 Dec 2011 21:49:26 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	Richard Purdie <rpurdie@...ys.net>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Shreshtha Kumar Sahu <shreshthakumar.sahu@...ricsson.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH] leds: driver for ab5500 high voltage leds

On Fri, Dec 02, 2011 at 02:56:22PM +0100, Linus Walleij wrote:

> +What:		/sys/class/leds/<led>/led_current
> +Date:		December 2011
> +KernelVersion:	3.3
> +Contact:	Shreshtha Kumar SAHU <shreshthakumar.sahu@...ricsson.com>
> +Description:
> +		Read and set the current limit for the LED. Value in
> +		milliampere.

This sounds like a platform data thing - normally if you get a current
limit wrong you're heading for magic smoke so it's not something you
want to be playing with at runtime from userspace.
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