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.
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