(HAL) kAudioDevicePropertyRelatedDevices vs USB audio
(HAL) kAudioDevicePropertyRelatedDevices vs USB audio
- Subject: (HAL) kAudioDevicePropertyRelatedDevices vs USB audio
- From: Michael Thornburgh <email@hidden>
- Date: Fri, 14 Nov 2003 11:36:34 -0800
(moderator: please disregard the pending version of this message that
was too long)
so i'm trying to use this kAudioDevicePropertyRelatedDevices property
on my panther 10.3.1 system. according to the IORegistryExplorer, it
sure seems like the two audio engines of my USB audio device (Griffin
iMic) share the same AppleUSBAudioDevice (subclass of IOAudioDevice).
however, when i do
theStatus = AudioDeviceGetPropertyInfo ( myDevice, 0, 0,
kAudioDevicePropertyRelatedDevices, &theSize, NULL );
theStatus ends up with kAudioHardwareUnknownPropertyError ('who?'),
which indicates that the requested device has no relatives.
am i Doing It Wrong? does this property work for anyone else with an
iMic, or other USB audio devices? or should i bug report this?
-mike
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