Message-ID: <4B0AB60B.2030006@s5r6.in-berlin.de>
Date: Mon, 23 Nov 2009 17:19:23 +0100
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
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To: Krzysztof Halasa <khc@pm.waw.pl>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>,
       Jarod Wilson <jarod@redhat.com>,
       Dmitry Torokhov <dmitry.torokhov@gmail.com>,
       linux-kernel@vger.kernel.org, Mario Limonciello <superm1@ubuntu.com>,
       linux-input@vger.kernel.org, linux-media@vger.kernel.org,
       Janne Grunau <j@jannau.net>, Christoph Bartelmus <lirc@bartelmus.de>
Subject: Re: [RFC] Should we create a raw input interface for IR's ? - Was:
 Re: [PATCH 1/3 v2] lirc core device driver infrastructure
References: <200910200956.33391.jarod@redhat.com>	<200910200958.50574.jarod@redhat.com> <4B0A765F.7010204@redhat.com>	<4B0A81BF.4090203@redhat.com> <m36391tjj3.fsf@intrepid.localdomain>
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Krzysztof Halasa wrote:
> Mauro Carvalho Chehab <mchehab@redhat.com> writes:
> 
>> Event input has the advantage that the keystrokes will provide an unique
>> representation that is independent of the device.
> 
> This can hardly work as the only means, the remotes have different keys,
> the user almost always has to provide customized key<>function mapping.

Modern input drivers in the mainline kernel have a scancode-to-keycode
translation table (or equivalent) which can be overwritten by userspace.
The mechanism to do that is the EVIOCSKEYCODE ioctl.

(This is no recommendation for lirc.  I have no idea whether a
pulse/space -> scancode -> keycode translation would be practical there.)
-- 
Stefan Richter
-=====-==--= =-== =-===
http://arcgraph.de/sr/
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