struct mutex open_mutex;
struct snd_pcm_substream *pcm_reserved[4];
- struct snd_pcm_hw_constraint_list *hw_rates; /* card-specific rate constraints */
+ const struct snd_pcm_hw_constraint_list *hw_rates; /* card-specific rate constraints */
unsigned int akm_codecs;
struct snd_akm4xxx *akm;