linux-kernel - Re: [PATCH] Add keyboard blink driver

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Message-ID: <20070418121153.GA2258@elf.ucw.cz>
Date:	Wed, 18 Apr 2007 14:11:53 +0200
From:	Pavel Machek <pavel@....cz>
To:	Andi Kleen <ak@...ell.com>
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add keyboard blink driver

Hi!

> Add a blink driver for debugging
> 
> Simple driver that blinks the keyboard LEDs when loaded. Useful
> for checking that the kernel is still alive or for crashdumping.

For checking if kernel is alive/crashdumping... can user just do
setleds +caps; sleep 1; setleds -caps; ... ? You can even have morse
code :-).

Besides, we now have led support framework in kernel, that can do
blinking by itself etc.
								Pavel


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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