[wdmaudiodev] usbaudio w. MIDI on XP ??

  • From: "Thomas Zepf" <thzepf@xxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 22 Oct 2002 10:22:58 +0200

I am designing a new USB audio device which contains both
MIDI and audio functions. So far both parts are working. 

The problem comes when XP sees a Unplup Event and 
there was a midi app opened before. (MIDIOx).

Then the device is not enumerated for about 5 min !
This does not occur if I don't use any MIDI app prior

My device uses 4 interfaces:
- Interface 0 for Audio Class Controls
- Interface 1 for Audio Stream Out
- Interface 2 for Audio Stream In
- Interface 3 for Midi

The midi part uses the example descriptors from the
Midi spec. with a second AC Header.
Midi and Audio Part are using different jack-ids.

Cheers Thomas


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