Subject: Re: options "BLINK" in config file for kernel?
To: Dan Dockery <>
From: Herb Peyerl <>
List: tech-kern
Date: 01/18/1999 10:05:26
[I've Cc'd tech-kern in the event that someone thinks it's a good idea and
goes ahead to discuss it and implement it]

"Dan Dockery" <>  wrote:
 > >options         BLINK           # blink the led on supported machines
 > >
 > >ok, it does indeed blink, but what is the purpose? Accept for the fact that
 > >now I can't tell by looking at the led whether the machine is down or not.
 > It looks neat.  Isn't that purpose enough?  Some of us like our blinky
 > LED's...

Something I've always wanted and have thought about writing is a
generic LED driver that basically collects blink events from various
sympathetic drivers and an MD driver that can drive whatever LED 
hardware is available on a machine.. Then a userland 'ledctl' that
connects various events to various led's.

Once, a long time ago, someone did a parallel-port based led-bank and
tweaks to 386bsd to make them do stuff... I built one, hooked it up
and started tweaking drivers and found it helpful; especially given
how unstable 386bsd was...

anyway, I've never gotten around to even seriously thinking about it
but I still want it...