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Date: Sun, 22 Apr 2012 17:51:48 -0700
From: Yuri <yuri@rawbw.com>
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Cc: Hans Petter Selasky <hans.petter.selasky@bitfrost.no>
Subject: Can't unload snd_uaudio: it hangs in D+ state
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I was debugging Logitech C910 webcam.
1. 'kldload snd_uaudio' while camera was attached
2. ran webcamd, which worked
3. stopped webcamd
4. 'kldunload snd_uaudio' while the camera is still attached => hanged in D+
5. 'kldstat' also hangs in D+
I didn't really use usound, just loaded the module.

What is wrong with snd_uaudio?

Yuri