ALSA project - the C library reference: /tmp/work/src/alsa-lib-1.2.12/include/rawmidi.h File Reference

ALSA project - the C library reference

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Macros | Typedefs | Enumerations | Functions
rawmidi.h File Reference

Application interface library for the ALSA driver. More...

Go to the source code of this file.

## Macros
#define | SND_RAWMIDI_DLSYM_VERSION _dlsym_rawmidi_001
#define | SND_RAWMIDI_APPEND
#define | SND_RAWMIDI_NONBLOCK
#define | SND_RAWMIDI_SYNC
#define | SND_RAWMIDI_INFO_UMP 0x00000008 /* rawmidi is UMP */
#define | snd_rawmidi_info_alloca(ptr)
| allocate an invalid snd_rawmidi_info_t using standard alloca
#define | snd_rawmidi_params_alloca(ptr)
| allocate an invalid snd_rawmidi_params_t using standard alloca
#define | snd_rawmidi_status_alloca(ptr)
| allocate an invalid snd_rawmidi_status_t using standard alloca

## Typedefs
typedef struct _snd_rawmidi_info | snd_rawmidi_info_t
typedef struct _snd_rawmidi_params | snd_rawmidi_params_t
typedef struct _snd_rawmidi_status | snd_rawmidi_status_t
typedef struct _snd_rawmidi | snd_rawmidi_t

## Enumerations
enum | snd_rawmidi_stream_t { SND_RAWMIDI_STREAM_OUTPUT = 0 , SND_RAWMIDI_STREAM_INPUT , SND_RAWMIDI_STREAM_LAST = SND_RAWMIDI_STREAM_INPUT }
enum | snd_rawmidi_type_t { SND_RAWMIDI_TYPE_HW , SND_RAWMIDI_TYPE_SHM , SND_RAWMIDI_TYPE_INET , SND_RAWMIDI_TYPE_VIRTUAL }
enum | snd_rawmidi_clock_t { SND_RAWMIDI_CLOCK_NONE = 0 , SND_RAWMIDI_CLOCK_REALTIME = 1 , SND_RAWMIDI_CLOCK_MONOTONIC = 2 , SND_RAWMIDI_CLOCK_MONOTONIC_RAW = 3 }
enum | snd_rawmidi_read_mode_t { SND_RAWMIDI_READ_STANDARD = 0 , SND_RAWMIDI_READ_TSTAMP = 1 }

## Functions
int | snd_rawmidi_open (snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, const char *name, int mode)
| Opens a new connection to the RawMidi interface.
int | snd_rawmidi_open_lconf (snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, const char *name, int mode, snd_config_t *lconf)
| Opens a new connection to the RawMidi interface using local configuration.
int | snd_rawmidi_close (snd_rawmidi_t *rmidi)
| close RawMidi handle
int | snd_rawmidi_poll_descriptors_count (snd_rawmidi_t *rmidi)
| get count of poll descriptors for RawMidi handle
int | snd_rawmidi_poll_descriptors (snd_rawmidi_t *rmidi, struct pollfd *pfds, unsigned int space)
| get poll descriptors
int | snd_rawmidi_poll_descriptors_revents (snd_rawmidi_t *rawmidi, struct pollfd *pfds, unsigned int nfds, unsigned short *revent)
| get returned events from poll descriptors
int | snd_rawmidi_nonblock (snd_rawmidi_t *rmidi, int nonblock)
| set nonblock mode
size_t | snd_rawmidi_info_sizeof (void)
| get size of the snd_rawmidi_info_t structure in bytes
int | snd_rawmidi_info_malloc (snd_rawmidi_info_t **ptr)
| allocate a new snd_rawmidi_info_t structure
void | snd_rawmidi_info_free (snd_rawmidi_info_t *obj)
| frees the snd_rawmidi_info_t structure
void | snd_rawmidi_info_copy (snd_rawmidi_info_t *dst, const snd_rawmidi_info_t *src)
| copy one snd_rawmidi_info_t structure to another
unsigned int | snd_rawmidi_info_get_device (const snd_rawmidi_info_t *obj)
| get rawmidi device number
unsigned int | snd_rawmidi_info_get_subdevice (const snd_rawmidi_info_t *obj)
| get rawmidi subdevice number
snd_rawmidi_stream_t | snd_rawmidi_info_get_stream (const snd_rawmidi_info_t *obj)
| get rawmidi stream identification
int | snd_rawmidi_info_get_card (const snd_rawmidi_info_t *obj)
| get rawmidi card number
unsigned int | snd_rawmidi_info_get_flags (const snd_rawmidi_info_t *obj)
| get rawmidi flags
const char * | snd_rawmidi_info_get_id (const snd_rawmidi_info_t *obj)
| get rawmidi hardware driver identifier
const char * | snd_rawmidi_info_get_name (const snd_rawmidi_info_t *obj)
| get rawmidi hardware driver name
const char * | snd_rawmidi_info_get_subdevice_name (const snd_rawmidi_info_t *obj)
| get rawmidi subdevice name
unsigned int | snd_rawmidi_info_get_subdevices_count (const snd_rawmidi_info_t *obj)
| get rawmidi count of subdevices
unsigned int | snd_rawmidi_info_get_subdevices_avail (const snd_rawmidi_info_t *obj)
| get rawmidi available count of subdevices
void | snd_rawmidi_info_set_device (snd_rawmidi_info_t *obj, unsigned int val)
| set rawmidi device number
void | snd_rawmidi_info_set_subdevice (snd_rawmidi_info_t *obj, unsigned int val)
| set rawmidi subdevice number
void | snd_rawmidi_info_set_stream (snd_rawmidi_info_t *obj, snd_rawmidi_stream_t val)
| set rawmidi stream identifier
int | snd_rawmidi_info (snd_rawmidi_t *rmidi, snd_rawmidi_info_t *info)
| get information about RawMidi handle
size_t | snd_rawmidi_params_sizeof (void)
| get size of the snd_rawmidi_params_t structure in bytes
int | snd_rawmidi_params_malloc (snd_rawmidi_params_t **ptr)
| allocate the snd_rawmidi_params_t structure
void | snd_rawmidi_params_free (snd_rawmidi_params_t *obj)
| frees the snd_rawmidi_params_t structure
void | snd_rawmidi_params_copy (snd_rawmidi_params_t *dst, const snd_rawmidi_params_t *src)
| copy one snd_rawmidi_params_t structure to another
int | snd_rawmidi_params_set_buffer_size (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val)
| set rawmidi I/O ring buffer size
size_t | snd_rawmidi_params_get_buffer_size (const snd_rawmidi_params_t *params)
| get rawmidi I/O ring buffer size
int | snd_rawmidi_params_set_avail_min (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val)
| set minimum available bytes in rawmidi I/O ring buffer for wakeup
size_t | snd_rawmidi_params_get_avail_min (const snd_rawmidi_params_t *params)
| get minimum available bytes in rawmidi I/O ring buffer for wakeup
int | snd_rawmidi_params_set_no_active_sensing (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, int val)
| set no-active-sensing action on snd_rawmidi_close()
int | snd_rawmidi_params_get_no_active_sensing (const snd_rawmidi_params_t *params)
| get no-active-sensing action status
int | snd_rawmidi_params_set_read_mode (const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_read_mode_t val)
| set read mode
snd_rawmidi_read_mode_t | snd_rawmidi_params_get_read_mode (const snd_rawmidi_params_t *params)
| get current read mode
int | snd_rawmidi_params_set_clock_type (const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_clock_t val)
| sets clock type for tstamp type framing
snd_rawmidi_clock_t | snd_rawmidi_params_get_clock_type (const snd_rawmidi_params_t *params)
| get current clock type (for tstamp type framing)
int | snd_rawmidi_params (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
| set parameters about rawmidi stream
int | snd_rawmidi_params_current (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
| get current parameters about rawmidi stream
size_t | snd_rawmidi_status_sizeof (void)
| get size of the snd_rawmidi_status_t structure in bytes
int | snd_rawmidi_status_malloc (snd_rawmidi_status_t **ptr)
| allocate the snd_rawmidi_status_t structure
void | snd_rawmidi_status_free (snd_rawmidi_status_t *obj)
| frees the snd_rawmidi_status_t structure
void | snd_rawmidi_status_copy (snd_rawmidi_status_t *dst, const snd_rawmidi_status_t *src)
| copy one snd_rawmidi_status_t structure to another
void | snd_rawmidi_status_get_tstamp (const snd_rawmidi_status_t *obj, snd_htimestamp_t *ptr)
| get the start timestamp
size_t | snd_rawmidi_status_get_avail (const snd_rawmidi_status_t *obj)
| get current available bytes in the rawmidi I/O ring buffer
size_t | snd_rawmidi_status_get_xruns (const snd_rawmidi_status_t *obj)
| get count of xruns
int | snd_rawmidi_status (snd_rawmidi_t *rmidi, snd_rawmidi_status_t *status)
| get status of rawmidi stream
int | snd_rawmidi_drain (snd_rawmidi_t *rmidi)
| drain all bytes in the rawmidi I/O ring buffer
int | snd_rawmidi_drop (snd_rawmidi_t *rmidi)
| drop all bytes in the rawmidi I/O ring buffer immediately
ssize_t | snd_rawmidi_write (snd_rawmidi_t *rmidi, const void *buffer, size_t size)
| write MIDI bytes to MIDI stream
ssize_t | snd_rawmidi_read (snd_rawmidi_t *rmidi, void *buffer, size_t size)
| read MIDI bytes from MIDI stream
ssize_t | snd_rawmidi_tread (snd_rawmidi_t *rmidi, struct timespec *tstamp, void *buffer, size_t size)
| read MIDI bytes from MIDI stream with timestamp
const char * | snd_rawmidi_name (snd_rawmidi_t *rmidi)
| get identifier of RawMidi handle
snd_rawmidi_type_t | snd_rawmidi_type (snd_rawmidi_t *rmidi)
| get type of RawMidi handle
snd_rawmidi_stream_t | snd_rawmidi_stream (snd_rawmidi_t *rawmidi)
| get stream (direction) of RawMidi handle

## Detailed Description

Application interface library for the ALSA driver.

Author
  Jaroslav Kysela perex.nosp@m.@per.nosp@m.ex.cz
  Abramo Bagnara abram.nosp@m.o@al.nosp@m.sa-pr.nosp@m.ojec.nosp@m.t.org
  Takashi Iwai tiwai.nosp@m.@sus.nosp@m.e.de

Date
  1998-2001

Application interface library for the ALSA driver