Here's the set of patches to make Fast Track Ultra mixer quirks possible. It's just a split version of the patch we've discussed on the ALSA ML before.
These patches can as well be pulled from
git@github.com:zonque/linux-2.6.git usb-audio
Daniel Mack (5): ALSA: usb-audio: move assignment of chip->ctrl_intf ALSA: usb-audio: rework add_control_to_empty() ALSA: usb-audio: export snd_usb_feature_unit_ctl ALSA: usb-audio: add new quirk type QUIRK_AUDIO_STANDARD_MIXER ALSA: usb-audio: more control quirks for M-Audio FastTrack devices
sound/usb/card.c | 17 ++++++----- sound/usb/mixer.c | 32 ++++++++------------ sound/usb/mixer.h | 14 ++++++++- sound/usb/mixer_quirks.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++ sound/usb/quirks-table.h | 4 +- sound/usb/quirks.c | 18 +++++++++++- sound/usb/usbaudio.h | 1 + 7 files changed, 125 insertions(+), 31 deletions(-)