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From: Helge Deller <deller@gmx.de>
To: Eli Carter <eli.carter@inet.com>, John Bradford <john@grabjohn.com>
Cc: linux-kernel@vger.kernel.org, pgw99@doc.ic.ac.uk
Subject: Re: PATCH : LEDs - possibly the most pointless kernel subsystem ever
Date: Wed, 30 Jul 2003 08:37:09 +0200	[thread overview]
Message-ID: <200307300835.49142.deller@gmx.de> (raw)
In-Reply-To: <3F26DC68.3010000@inet.com>

On Tuesday 29 July 2003 22:43, Eli Carter wrote:
> Maybe also:
>   * 100% CPU usage
>   * Toggle each jiffie (help detect interrupts disabled)
>   * User control for things like cpu/harddrive temp...
>   * and of course, Morse code ;)

Older PA-RISC machines have at the front panel a LED
which shows machine load (4 LEDs), heartbeat (1 LED), 
SCSI activity (1 LED) and network RX/TX (1 LED each).
This panel is programmable via software and a nice and 
consistent linux kernel and userspace API  across the 
architectures is IMHO a good thing.

Helge

  parent reply	other threads:[~2003-07-30  6:37 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-29 20:38 PATCH : LEDs - possibly the most pointless kernel subsystem ever John Bradford
2003-07-29 20:37 ` Andries Brouwer
2003-07-29 21:34   ` Philip Graham Willoughby
2003-07-29 20:40 ` Randolph Bentson
2003-07-29 21:15   ` Ryan Flowers
2003-07-29 20:43 ` Eli Carter
2003-07-30  6:09   ` Tomas Szepe
2003-07-30  6:37   ` Helge Deller [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-07-30 18:50 John Bradford
2003-07-30 16:08 John Bradford
2003-07-30 17:44 ` Pavel Machek
2003-07-30 18:50   ` Marc Giger
2003-07-30 19:05     ` Herbert Pötzl
2003-07-30 22:22     ` Brian McGroarty
2003-07-30 18:56   ` Herbert Pötzl
2003-07-30 19:02     ` Pavel Machek
2003-07-30 19:06     ` Marc Giger
2003-07-30 19:16       ` Herbert Pötzl
2003-07-31  8:31 ` jw schultz
2003-07-30 15:50 John Bradford
2003-07-30 12:27 "Andrey Borzenkov" 
2003-07-29 19:15 John Bradford
2003-07-29 19:51 ` Tim Hockin
2003-07-29 20:09 ` Joel Jaeggli
2003-07-29 21:20 ` Kent Borg
2003-07-29 21:44   ` Philip Graham Willoughby
2003-07-30 21:44     ` Mike Jagdis
2003-07-30 12:15 ` Pavel Machek
2003-07-29 15:17 Philip Graham Willoughby
2003-07-29 18:00 ` Pavel Machek
2003-07-30 11:45   ` Jamey Hicks
2003-07-30 12:27     ` Pavel Machek
2003-07-30  6:36 ` CaT
2003-07-30 13:00   ` Andries Brouwer
2003-07-30 13:20     ` CaT
2003-07-30 23:28 ` Greg KH

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