sound_queue
extern struct sound_queue dmasound_write_sq;
struct sound_queue dmasound_write_sq;
static int sq_allocate_buffers(struct sound_queue *sq, int num, int size)
static void sq_release_buffers(struct sound_queue *sq)
static int sq_setup(struct sound_queue *sq)
static inline void sq_init_waitqueue(struct sound_queue *sq)
static inline void sq_wake_up(struct sound_queue *sq, struct file *file,
static int sq_open2(struct sound_queue *sq, struct file *file, fmode_t mode,
static int set_queue_frags(struct sound_queue *sq, int bufs, int size)