- added support for spdif on coexant cx20468 chip
  - fixed compilation without CONFIG_PROC_FS
  - YMFPCI driver
    - fixed GPIO read/write
    - a new module option snd_rear_switch
  - ioctl32 - added support for old hw_params ioctl
  - ES1968 driver
    - enabled hw control IRQ
    - calling es1968_reset() in free()
  - VIA8233 driver - fixes for mono playback