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Subject[PATCH v4 0/4] ALSA: usb: UAC3 new features.
v4 Updates:
- Removes already applied patch from v2 of this patchset.
- Adds small patch to parse Feature Unit number of channels.
- Rebased onto latest linux-next tag as today.

Now that the UAC3 patch [1] has made it to linux-next I have some extra
features to make a UAC3 devices fully work in Linux. Including Jack
insertion control that I have put on top of this other patch [2] for
UAC2. Also adding support for the UAC3 Mixer Unit which is most likely
to appear in most headset type devices.

UAC3 devices also require to have a Basic Audio Device (BADD) in a separate
config for which both Ruslan Bilovol and myself have submited different
approaches[3][4]. After an ongoing discussion between Ruslan and myself
we have decided that the patch from Ruslan[3] implements a simpler and
yet more robust BADD driver.

All this features are tested with an actual UAC3 device that is still in
development. For this patch series, only the legacy config (#1. UAC1/UAC2)
and the UAC3 config have been tested. The BADD config will come in
a different patch from Ruslan.


Based on linux-next tag: next-20180510

Jorge Sanjuan (4):
ALSA: usb-audio: UAC3. Add support for mixer unit.
ALSA: usb-audio: Use Class Specific EP for UAC3 devices.
ALSA: usb-audio: UAC3 Add support for connector insertion.
ALSA: usb-audio: UAC3: Parse Input Terminal number of channels.

include/linux/usb/audio-v2.h | 7 ++
include/linux/usb/audio-v3.h | 14 +++
include/uapi/linux/usb/audio.h | 19 +++-
sound/usb/mixer.c | 200 ++++++++++++++++++++++++++++++++++++-----
sound/usb/stream.c | 9 +-
5 files changed, 222 insertions(+), 27 deletions(-)


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