From: Arjan van de Ven <arjan@infradead.org>
To: Elias Naur <elias@oddlabs.com>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Expose input device usages to userspace
Date: Mon, 13 Mar 2006 22:02:58 +0100 [thread overview]
Message-ID: <1142283779.3023.49.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <200603132154.38876.elias@oddlabs.com>
On Mon, 2006-03-13 at 21:54 +0100, Elias Naur wrote:
> Hi,
>
> I believe that the current event input interface is missing some kind of
> information about the general kind of input device (Mouse, Keyboard, Joystick
> etc.) so I added a simple ioctl to do just that. The relevant line in
> include/linux/input.h is:
>
> #define EVIOCGUSAGE(len) _IOC(_IOC_READ, 'E', 0x1c, len) /* get all
> usages */
>
> It returns a bit set with the device usages. Current usages are:
>
> #define USAGE_MOUSE 0x00
> #define USAGE_JOYSTICK 0x01
> #define USAGE_GAMEPAD 0x02
> #define USAGE_KEYBOARD 0x03
I'm not sure that this is a good idea in general.
However when you do it, at least make it a bitmap; things can be both a
mouse and a keyboard for example.
next prev parent reply other threads:[~2006-03-13 21:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-13 20:54 Elias Naur
2006-03-13 21:02 ` Arjan van de Ven [this message]
2006-03-14 5:26 ` Dmitry Torokhov
2006-03-14 7:21 ` Elias Naur
2006-03-14 8:22 ` Arjan van de Ven
2006-03-14 10:46 ` Elias Naur
2006-03-14 10:59 ` Arjan van de Ven
2006-03-14 11:46 ` Elias Naur
2006-03-14 5:33 ` Elias Naur
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