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Date: Sat, 3 Dec 2011 21:49:26 +0000
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Linus Walleij <linus.walleij@stericsson.com>
Cc: Richard Purdie <rpurdie@rpsys.net>, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Samuel Ortiz <sameo@linux.intel.com>,
        Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com>,
        Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH] leds: driver for ab5500 high voltage leds
Message-ID: <20111203214924.GA21511@sirena.org.uk>
References: <1322834182-26168-1-git-send-email-linus.walleij@stericsson.com>
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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@stericsson.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.