usb/156726: [snd_uaudio]: snd_uaudio(4) fails to detach when mixer is open

[gavin at FreeBSD.org]

Synopsis: [snd_uaudio]: snd_uaudio(4) fails to detach when mixer is open

Responsible-Changed-From-To: freebsd-multimedia->freebsd-usb
Responsible-Changed-By: gavin
Responsible-Changed-When: Thu Aug 16 12:53:15 UTC 2012
Responsible-Changed-Why: 
This sounds potentially like a USB stack issue to me.

http://www.freebsd.org/cgi/query-pr.cgi?pr=156726