Re: [alsa-devel] [PATCH v2 5/6] sound/usb: pcm changes to use media token api

Sorry, I'm not convinced by that. If the device has to be controlled exclusively, the right position is the open/close. Otherwise, the program cannot know when it becomes inaccessible out of sudden during its operation.

I can say that I've definitely seen cases where if you configure a device as the "default" capture device in PulseAudio, then pulse will continue to capture from it even if you're not actively capturing the audio from pulse. I only spotted this because I had a USB analyzer on the device and was dumbfounded when the ISOC packets kept arriving even after I had closed VLC.

Devin