unsigned int c_dma_size;
spinlock_t reg_lock;
- struct mutex mce_mutex;
- struct mutex open_mutex;
+ struct semaphore mce_mutex;
+ struct semaphore open_mutex;
int (*rate_constraint) (struct snd_pcm_runtime *runtime);
void (*set_playback_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char pdfr);