- CS46xx
    - SPDIF input fixes
    - fixed missplaced #ifndef
    - amplifier fix for Game Theater XP
    - refine on the PCM multichannel functionality
  - EMU10K1
    - added the support for Audigy spdif controls
  - PCM midlevel
    - fixed hw_free (wrong state for drivers with no callback
    - fixed sw_params (runtime) lock
  - AC'97 codec
    - fixed spin deadlock
  - CS4281
    - fixed wrong mdelays and allowed scheduling in module_init
  - PPC drivers
    - added the missing inclusion of linux/slab.h
  - USB MIDI driver
    - replaced urb_t -> struct urb