Messages in this thread | | | From | Dmitry Torokhov <> | Subject | Re: [PATCH] Expose input device usages to userspace | Date | Tue, 14 Mar 2006 00:26:28 -0500 |
| |
On Monday 13 March 2006 16:02, Arjan van de Ven wrote: > 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. >
No, I don't think this is needed at all - users should be interested in what capabilities a particular device has, not what type it was assigned by soneone.
-- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |