linux-kernel - Re: [RFC] Should we create a raw input interface for IR's ? - Was: Re: [PATCH 1/3 v2] lirc core device driver infrastructure

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Message-ID: <4B1EE9A7.70609@redhat.com>
Date:	Tue, 08 Dec 2009 22:04:55 -0200
From:	Mauro Carvalho Chehab <mchehab@...hat.com>
To:	Krzysztof Halasa <khc@...waw.pl>
CC:	Jon Smirl <jonsmirl@...il.com>, Andy Walls <awalls@...ix.net>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jarod Wilson <jarod@...sonet.com>,
	Christoph Bartelmus <lirc@...telmus.de>, j@...nau.net,
	jarod@...hat.com, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	superm1@...ntu.com
Subject: Re: [RFC] Should we create a raw input interface for IR's ? - Was:
  Re: [PATCH 1/3 v2] lirc core device driver infrastructure

Krzysztof Halasa wrote:
> Jon Smirl <jonsmirl@...il.com> writes:
> 
>> Why do you want to pull the 1KB default mapping table out of the
>> device driver __init section and more it to a udev script? Now we will
>> have to maintain a parallel udev script for ever receiver's device
>> driver.
> 
> Of course no. We will need a single program (script etc.) for all
> devices. And we will need a database of the known remotes (scan and key
> codes).

The keycode database can be easily extracted from kernel drivers by script.
I have it already at V4L/DVB development tree.

>> You can handle that with __devinit
> 
> __devinit is NOP with hot-plug.
> 
> Fortunately we don't need the keymaps in the kernel.
> For certain uses we may (and may not) need to have one keymap built-in,
> perhaps something similar to the embedded initrd.

I still think the better is to have them in kernel, but compiled only
if selected at Kbuild.

Cheers,
Mauro.
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