ALSA Library Reference Manual
DECLARATION
typedef struct
{
volatile int status; /* RO: status - SND_PCM_STATUS_XXXX */
volatile int frag_io; /* RO: index to the fragment under I/O operation */
int frags; /* RO: fragments */
int frag_size; /* RO: fragment size */
int voices; /* RO: number of voices, -1 = interleaved */
volatile unsigned int block; /* RO: block number */
volatile unsigned int expblock; /* RW: expected block number for wakeup */
int res[9]; /* reserved */
}
snd_pcm_mmap_io_status_t;
REFERENCE