SNDRV_FIREWIRE_TASCAM_STATE_COUNT
__be32 data[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
index = be32_to_cpu(buffer[0]) % SNDRV_FIREWIRE_TASCAM_STATE_COUNT;
__be32 state[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];