audio_format_query
struct audio_format_query fmtq;
static int ascaudio_query_format(void *, struct audio_format_query *);
ascaudio_query_format(void *opaque, struct audio_format_query *ae)
static int auich_query_format(void *, struct audio_format_query *);
auich_query_format(void *v, struct audio_format_query *afp)
static int eap_query_format(void *, struct audio_format_query *);
eap_query_format(void *addr, struct audio_format_query *afp)
#define AUDIO_QUERYFORMAT _IOWR('A', 38, struct audio_format_query)