alsa-lib/include/rawmidi.h

/****************************************************************************
 *                                                                          *
 *                              rawmidi.h                                   *
 *                          RawMIDI interface                               *
 *                                                                          *
 ****************************************************************************/

#define SND_RAWMIDI_OPEN_OUTPUT		(O_WRONLY)
#define SND_RAWMIDI_OPEN_OUTPUT_APPEND	(O_WRONLY|O_APPEND|O_NONBLOCK)
#define SND_RAWMIDI_OPEN_INPUT		(O_RDONLY)
#define SND_RAWMIDI_OPEN_DUPLEX		(O_RDWR)
#define SND_RAWMIDI_OPEN_DUPLEX_APPEND	(O_RDWR|O_APPEND|O_NONBLOCK)
#define SND_RAWMIDI_OPEN_NONBLOCK	(O_NONBLOCK)

#ifdef __cplusplus
extern "C" {
#endif

typedef struct snd_rawmidi snd_rawmidi_t;

int snd_rawmidi_open_subdevice(snd_rawmidi_t **handle, int card, int device, int subdevice, int mode);
int snd_rawmidi_open(snd_rawmidi_t **handle, int card, int device, int mode);
int snd_rawmidi_close(snd_rawmidi_t *handle);
int snd_rawmidi_poll_descriptor(snd_rawmidi_t *handle);
int snd_rawmidi_block_mode(snd_rawmidi_t *handle, int enable);
int snd_rawmidi_info(snd_rawmidi_t *handle, snd_rawmidi_info_t * info);
int snd_rawmidi_stream_params(snd_rawmidi_t *handle, snd_rawmidi_params_t * params);
int snd_rawmidi_stream_setup(snd_rawmidi_t *handle, snd_rawmidi_setup_t * setup);
int snd_rawmidi_stream_status(snd_rawmidi_t *handle, snd_rawmidi_status_t * status);
int snd_rawmidi_output_drop(snd_rawmidi_t *handle);
int snd_rawmidi_output_drain(snd_rawmidi_t *handle);
int snd_rawmidi_input_drain(snd_rawmidi_t *handle);
int snd_rawmidi_stream_drain(snd_rawmidi_t *handle, int channel);
ssize_t snd_rawmidi_write(snd_rawmidi_t *handle, const void *buffer, size_t size);
ssize_t snd_rawmidi_read(snd_rawmidi_t *handle, void *buffer, size_t size);

#ifdef __cplusplus
}
#endif