[libhid-discuss] HID Usage path for input and output

Mark S. Townsley mstownsley at gmail.com
Tue Sep 26 19:13:41 UTC 2006


Hi:

I am a few hours into libhid and I have no clue how to obtain my input and
output path to communicate with my device.
I went through the test_libhid.c comments but still unsure.  Can someone
explain to me how I can read the the output
from hid_dump_tree to find out my input/output usage path?   Thanks!!

Here is the output of hid_dump_tree:

parse tree of HIDInterface 001/005[0]:
  path: 0xff000001.0xff000002; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0x00000000; type: 0x80
  path: 0xff000001.0xff000003; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0x00000000; type: 0x90
  path: 0xff000001.0xff000004; type: 0xb0
  path: 0xff000001.0x00000000; type: 0xb0


Mark
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