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Subject: Re: ps2 keyboard filter hook
To: ddstreet@us.ibm.com
Date: Fri, 15 Jun 2001 21:35:36 +0100 (BST)
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.4.10.10106151345510.25518-200000@ddstreet.raleigh.ibm.com> from "ddstreet@us.ibm.com" at Jun 15, 2001 04:03:32 PM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> The registered drivers are called (in order of registration) for every scancode,
> and they may change or consume the scancode (or allow it to pass).  Also the
> 'filters' are given a function to send an variable-sized buffer to the keyboard
> output port; this function is synchronized using a semaphore which also
> coordinates with pckbd_leds().

X11 likes to talk direct to the PS/2 port.  I actually think you should instead
talk to Vojtech for the mainstream kernel about the input device work. It 
sounds much cleaner and more close to what you need