> On Tue, 14 May 2002 17:55, Jens Kilian wrote:
> > As far as I can see, the only way to create an HID compliant report
> > descriptor for such a device is to use the "Ordinal" usage page to specify
> > 9 instances of a "Dial" control. Unfortunately, the Linux USB/input
> > drivers don't support the Ordinal page at the moment. I therefore propose
> > to add support for this page to the hid-input driver and to somehow extend
> > the /dev/input... driver to make use of this information.
> I think that this is a key issue. Exactly what do you plan to do with this
> device in userspace? If you will always need a special userspace driver
> anyway, then the easiest way to handle this device might be to use hiddev.
Well, it is potentially a plain vanilla input device; it could be used
by any application, but I plan to (eventually) write an XInput driver for it.
(I'd have to use the evdev driver, of course, because this is not a mouse,
keyboard, or joystick.)
I could use hiddev, I suppose, but I figured that somebody else might at some
time encounter a commercial device using "Ordinal" usages, and it would be
nice to have support for them.
Bye,
Jens.
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