linux-kernel - Re: [PATCH] led-class.c permission change

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Date:	Sat, 5 May 2007 22:48:03 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Colin Leroy <colin@...ino.net>
Cc:	Richard Purdie <rpurdie@...nedhand.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] led-class.c permission change

On Sat, 5 May 2007 12:49:54 +0200
Colin Leroy <colin@...ino.net> wrote:

> Hi,
> 
> This patch changes the led brightness file's permissions to 0666, so that a 
> user's MUA can light up the mail LED without needing root permissions.

NAK.

The management of user specific temporary permissions belongs in user
space with a safe "no" default value to stop background daemons doing
silly things.

Take a look at the various pam console management modules (and also beat
people up to get revoke() support into the kernel).

Alan
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