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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Nico Schottelius <nico-linux-ppc@schottelius.org>
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Date: Thu, 27 Jan 2005 00:42:26 +1100
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Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH] Heartbeat LED for iBook
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On Wed, 2005-01-26 at 12:35 +0100, Nico Schottelius wrote:
> Hello!
> 
> 
> Joerg Dorchain [Tue, Jan 18, 2005 at 10:42:16AM +0100]:
> > [heartbeat blink patch]
> 
> Well, wouldn't it make much more sense to write a
> /dev/frontled to access it via userspace? 
> 
> Then one could enable much more features like
> - xmms plugins
> - num-lock led
> - network-traffic
> - morse-codes
> - glowing when typing
> - ...

One can always control the led by sending PMU command directly
via /dev/adb :) Ok, that sort-of sucks, especially since the command is
only supported by some versions of the PMU. On the other hand, I dislike
cluttering /dev ... maybe I can find some better mecanism via sysfs...

Ben.