Messages in this thread | | | Date | Mon, 16 Sep 2002 21:55:22 +0200 | From | Vojtech Pavlik <> | Subject | Re: [PATCH] Experimental IDE oops dumper v0.1 |
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On Mon, Sep 16, 2002 at 05:43:50AM -0400, Rob Landley wrote: > On Monday 16 September 2002 08:39 am, jbradford@dial.pipex.com wrote: > > Talking about dumping oopsen, would there be any usefulness in outputting > > crash data to the PC speaker, using a slow, (~300 bps) modulation that > > would survive being captured on a cassette using a walkman with a > > microphone, then decoded using a userspace program from a sampled .au file? > > This is easier and less error-prone than copying the oops down by hand?
Works in X. Hand copying doesn't. But serial (or printer) console is probably easier.
> I remember using 300 bps. On a closed electrical circuit without acoustic > couplers, you still got line noise. Acoustic couplers put the speaker and > microphone right on top of each other and surrounded them with a muffler to > try to minimize ambient noise from the room...
Well, this is simplex only, so it's a bit easier. And we could use even slower speed, 75 bps would also work.
> > Just thought it might be easily implementable, as it doesn't have any > > pre-requisits, (other than having a PC speaker, which *almost* everybody > > has). > > Not everybody has a tape recorder, though. > > And the -ac branch already does output in morse code. Try taping that and > writing a user mode interpreter for it, if you like...
-- Vojtech Pavlik SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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