Re: PATCH: Four function buttons on DELL Latitude X200

From: Jan-Benedict Glaw (
Date: Fri Dec 13 2002 - 11:22:17 EST

On Wed, 2002-12-11 14:41:20 -0800, H. Peter Anvin <>
wrote in message <>:
> Pavel Machek wrote:
> >
> > Well, nothing prevents keyboard manufacturers from using 0xe2 as a
> > prefix, too. I think there are really *weird* keyboards out there.
> >
> True enough, although very few things are going to recognize them at all.

A co-worker of me once developed some patch to handle some weired
Point of Sale keyboards (with magnetic stripe reader and some lock and
so on). He did it by allowing additional modules to parse everything
what is coming from keyboard controller (through additionally hooked
modules) before sending "normal" keycaps events to userspace. An
application willing to get the extra data could fetch that from some
/dev/ice node. This could be generalized to send input API events. I'll
CC him to allow him to speak up.


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