linux-kernel - Re: [PATCH] ata: ahci: Enable enclosure management via LED (resend)

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Message-Id: <200710252335.12975.ioe-lkml@rameria.de>
Date:	Thu, 25 Oct 2007 23:35:11 +0200
From:	Ingo Oeser <ioe-lkml@...eria.de>
To:	Kristen Carlson Accardi <kristen.c.accardi@...el.com>
Cc:	akpm@...ux-foundation.org, jeff@...zik.org,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Richard Purdie <rpurdie@...nedhand.com>
Subject: Re: [PATCH] ata: ahci: Enable enclosure management via LED (resend)

Hi Kristen,

On Thursday 25 October 2007, Kristen Carlson Accardi wrote:
> Enable enclosure management via LED
> 
> As described in the AHCI spec, some AHCI controllers may support 
> Enclosure management via a variety of protocols.  This patch
> adds support for the LED message type that is specified in 
> AHCI 1.1 and higher.

Linux has a LED subsystem for that. May I suggest, that you just register
these leds and let userspace handle them via that via the LED API?

The LED userspace API is described in Documentation/leds-class.txt
and the headers for registering LEDs is linux/leds.h under include/

Since you explicitly WANT user space to control these, that should
be the right API. 

Richard, what do YOU think?


Best Regards

Ingo Oeser
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