[Bug 12706] winealsa.drv: "No master control found" on usb microphone devices

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=12706

--- Comment #27 from Jeff Cook <jeff at deserettechnology.com> 2011-04-12 15:13:26 CDT ---
For the record, I had USB audio working with card 0 with a set of patches
mailed last year. Some of them were merged but an important one and some that
relied on it weren't. The main problem is that the patch that opens the alsa
device with dmix() was rejected because it's not technically correct to open an
alsa device with dmix() explicitly (in case a user is not using dmix). That's
the only way I could get it working, though -- without that explicit dmix open,
there would be a race between the usb mic and the sound card to open the sound
first, and whichever won would work and the other wouldn't. I've asked in ALSA
forums and they've not provided any useful info. Once I find out how to get
around that and/or do things correctly there, I will probably look at proposing
the patches again, and extending them to allow you to use non-card-0 devices as
USB audio.

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