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Date: Thu, 15 May 2014 21:53:43 +0200 (CEST)
From: Jiri Kosina <jkosina@suse.cz>
To: "H. Peter Anvin" <hpa@zytor.com>
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Cc: PJ Waskiewicz <pjwaskiewicz@gmail.com>, Jason Cooper <jason@lakedaemon.net>,
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	Dirk Hohndel <hohndel@infradead.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] QR encoded oops for the kernel
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On Thu, 15 May 2014, H. Peter Anvin wrote:

> 	-hpa (who is suddenly thinking extremely evil thoughts about
>               modem tones and sound cards.)

I recall a patchset flying by years ago, which could use either keyboard 
LEDs or pc speaker to provide the oops to in morse code.

It's now more difficult with USB keyboards, because you need a lot of 
stuff to happen (including scheduling a workqueue) to blink the LEDs, but 
the pc speaker part should work.

Then you just run an app on your smartphone which decodes the morse back 
to the actual oops message, and you are done :)

-- 
Jiri Kosina
SUSE Labs