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No audio USB DAC after update to 10.12.2 (HD Audio AS372)


robbie
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After update 10.12.1 -> 10.12.2 there is a problem with the DAC HD Audio device connected to the USB port is visible in the System report, but there is no input/output devices in System Preferences.

I have a DAC HDAudio AS372 and the device went dead.
 
For now I swapped AppleUSBAudio.kext kext in S/L/E 10.12.2 to 10.12.1 and sound back.
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I spent about two days on this one.  No USB audio devices would show up.  I also have a sneaking suspicion that a webcam I bought was perfectly fine as well.  The problem is not related to audio kexts, it's GenericUSBXHCI.kext that is the culprit.  No audio devices were able to communicate at all with it installed.  I removed it from clover, and all is well (except my usb transfer speeds are down to 2.0.  Bummer there.)

 

I'm looking for a different version of the kext now.  If I find one that works, I will share.  If you do, please share as well.

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