Hello,
I've written a USB device which supports multiple input devices:
* A touch surface digitizer (following Microsoft's specification)
* A pen surface digitizer
* A mouse emulator
In windows each of these interfaces are exposed as a separate top
level collection, e.g.:
Usage_Page(Generic Desktop)
Usage(Mouse)
Collection(Application)
...
End_Collection
Usage_Page(Digitzer)
Usage(Touch_Screen)
Collection(Application)
...
End_Collection
Usage(Digitizer)
Usage(Pen)
Collection(Application)
...
End_Collection
Now this descriptor works well in Windows; all reporting channels are
exposed correctly as hid devices and mouse/multitouch/pen input all
works correctly as expected. In linux, however, this is not the case.
What I see is that if I drop out the touch/pen functionality then the
mouse support works correctly. Likewise, if I drop any pair of other
top level collections such that I have exactly one top level collection
the system works correctly.
Am I missing something here - as in: Have I made an error in my usage
of top level collections, or is linux-input's hid support incapable of
dealing with multiple top level collections?
Thanks in advance for any advice on this!
-bms20
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
