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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Date:	Thu, 26 Nov 2009 15:10:43 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Mauro Carvalho Chehab <mchehab@...hat.com>
Cc:	Krzysztof Halasa <khc@...waw.pl>, Jarod Wilson <jarod@...hat.com>,
	linux-kernel@...r.kernel.org,
	Mario Limonciello <superm1@...ntu.com>,
	linux-input@...r.kernel.org, linux-media@...r.kernel.org,
	Janne Grunau <j@...nau.net>,
	Christoph Bartelmus <lirc@...telmus.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

On Thu, Nov 26, 2009 at 07:05:01PM -0200, Mauro Carvalho Chehab wrote:
> 
> For example, the two ioctls to replace a scancode x key code are defined as:
> 
> #define EVIOCGKEYCODE           _IOR('E', 0x04, int[2])                 /* get keycode */
> #define EVIOCSKEYCODE           _IOW('E', 0x04, int[2])                 /* set keycode */
> 
> We need to better analyze the API to see how this can be extended to
> allow bigger widths.
> 
> (what's worse is that it is defined as "int" instead of "u32" - so the number
> of bits is different on 32 and on 64 systems)
> 

Not really, int is 32 bits on both, longs the ones that differ.

-- 
Dmitry
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