This is v2 of the patch bulk I posted some weeks ago, which incoporates the points that were discussed. Thanks to everyone who commented and helped with sugesstions.
This version work really well here, but as last time, it needs a lot more testing. What's still missing are some cleanups and more documentation, I'll do that once the acutal content is agreed upon.
Patches should apply cleanly to the latest mainline git + Takashi's sound tree.
Thanks for any feedback for this next round, Daniel
Daniel Mack (5): ALSA: snd-usb: add snd_usb_audio-wide mutex ALSA: snd-usb: implement new endpoint streaming model ALSA: snd-usb: switch over to new endpoint streaming logic ALSA: snd-usb: remove old streaming logic ALSA: snd-usb: add support for implicit feedback
sound/usb/card.c | 8 +- sound/usb/card.h | 65 +++ sound/usb/endpoint.c | 1434 +++++++++++++++++++++++++------------------------- sound/usb/endpoint.h | 31 +- sound/usb/pcm.c | 444 +++++++++++++--- sound/usb/stream.c | 31 +- sound/usb/usbaudio.h | 2 + 7 files changed, 1214 insertions(+), 801 deletions(-)