Dear Jiris, dear Greg,
I just saw a message in the linux-input ml about a USB tablet that is
not registered in the input layer. Someone proposed that there might
be no useful application in the HID report descriptors.
There is an other possibility: the IS_INPUT_APPLICATION in hid.h
might fail to capture a legitimate application. I am currently
working on a HID driver for a multitouch surface by Stantum that has
application usage 0x000d0004 (Digitizer / Touchscreen), and I had to
change IS_INPUT_APPLICATION to have it registered in the input layer.
The N-Trig surface is registered only because it declares two
application collections: a Pen and a Touchscreen.
The comment that accompanies the definition of the macro looks very
old. Is there another reason why the definition of input applications
is so restrictive? I had in mind to add the range
0x000d0002-0x000d0006 at least. Is there any contraindication to this?
St.
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