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RawMidi Interface

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_alloca(ptr)
 allocate an invalid snd_rawmidi_info_t using standard alloca More...
 
#define snd_rawmidi_params_alloca(ptr)
 allocate an invalid snd_rawmidi_params_t using standard alloca More...
 
#define snd_rawmidi_status_alloca(ptr)
 allocate an invalid snd_rawmidi_status_t using standard alloca More...
 

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 }
 

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. More...
 
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. More...
 
int snd_rawmidi_close (snd_rawmidi_t *rmidi)
 close RawMidi handle More...
 
int snd_rawmidi_poll_descriptors_count (snd_rawmidi_t *rmidi)
 get count of poll descriptors for RawMidi handle More...
 
int snd_rawmidi_poll_descriptors (snd_rawmidi_t *rmidi, struct pollfd *pfds, unsigned int space)
 get poll descriptors More...
 
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 More...
 
int snd_rawmidi_nonblock (snd_rawmidi_t *rmidi, int nonblock)
 set nonblock mode More...
 
size_t snd_rawmidi_info_sizeof (void)
 get size of the snd_rawmidi_info_t structure in bytes More...
 
int snd_rawmidi_info_malloc (snd_rawmidi_info_t **ptr)
 allocate a new snd_rawmidi_info_t structure More...
 
void snd_rawmidi_info_free (snd_rawmidi_info_t *obj)
 frees the snd_rawmidi_info_t structure More...
 
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 More...
 
unsigned int snd_rawmidi_info_get_device (const snd_rawmidi_info_t *obj)
 get rawmidi device number More...
 
unsigned int snd_rawmidi_info_get_subdevice (const snd_rawmidi_info_t *obj)
 get rawmidi subdevice number More...
 
snd_rawmidi_stream_t snd_rawmidi_info_get_stream (const snd_rawmidi_info_t *obj)
 get rawmidi stream identification More...
 
int snd_rawmidi_info_get_card (const snd_rawmidi_info_t *obj)
 get rawmidi card number More...
 
unsigned int snd_rawmidi_info_get_flags (const snd_rawmidi_info_t *obj)
 get rawmidi flags More...
 
const char * snd_rawmidi_info_get_id (const snd_rawmidi_info_t *obj)
 get rawmidi hardware driver identifier More...
 
const char * snd_rawmidi_info_get_name (const snd_rawmidi_info_t *obj)
 get rawmidi hardware driver name More...
 
const char * snd_rawmidi_info_get_subdevice_name (const snd_rawmidi_info_t *obj)
 get rawmidi subdevice name More...
 
unsigned int snd_rawmidi_info_get_subdevices_count (const snd_rawmidi_info_t *obj)
 get rawmidi count of subdevices More...
 
unsigned int snd_rawmidi_info_get_subdevices_avail (const snd_rawmidi_info_t *obj)
 get rawmidi available count of subdevices More...
 
void snd_rawmidi_info_set_device (snd_rawmidi_info_t *obj, unsigned int val)
 set rawmidi device number More...
 
void snd_rawmidi_info_set_subdevice (snd_rawmidi_info_t *obj, unsigned int val)
 set rawmidi subdevice number More...
 
void snd_rawmidi_info_set_stream (snd_rawmidi_info_t *obj, snd_rawmidi_stream_t val)
 set rawmidi stream identifier More...
 
int snd_rawmidi_info (snd_rawmidi_t *rmidi, snd_rawmidi_info_t *info)
 get information about RawMidi handle More...
 
size_t snd_rawmidi_params_sizeof (void)
 get size of the snd_rawmidi_params_t structure in bytes More...
 
int snd_rawmidi_params_malloc (snd_rawmidi_params_t **ptr)
 allocate the snd_rawmidi_params_t structure More...
 
void snd_rawmidi_params_free (snd_rawmidi_params_t *obj)
 frees the snd_rawmidi_params_t structure More...
 
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 More...
 
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 More...
 
size_t snd_rawmidi_params_get_buffer_size (const snd_rawmidi_params_t *params)
 get rawmidi I/O ring buffer size More...
 
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 More...
 
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 More...
 
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() More...
 
int snd_rawmidi_params_get_no_active_sensing (const snd_rawmidi_params_t *params)
 get no-active-sensing action status More...
 
int snd_rawmidi_params (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
 set parameters about rawmidi stream More...
 
int snd_rawmidi_params_current (snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
 get current parameters about rawmidi stream More...
 
size_t snd_rawmidi_status_sizeof (void)
 get size of the snd_rawmidi_status_t structure in bytes More...
 
int snd_rawmidi_status_malloc (snd_rawmidi_status_t **ptr)
 allocate the snd_rawmidi_status_t structure More...
 
void snd_rawmidi_status_free (snd_rawmidi_status_t *obj)
 frees the snd_rawmidi_status_t structure More...
 
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 More...
 
void snd_rawmidi_status_get_tstamp (const snd_rawmidi_status_t *obj, snd_htimestamp_t *ptr)
 get the start timestamp More...
 
size_t snd_rawmidi_status_get_avail (const snd_rawmidi_status_t *obj)
 get current available bytes in the rawmidi I/O ring buffer More...
 
size_t snd_rawmidi_status_get_xruns (const snd_rawmidi_status_t *obj)
 get count of xruns More...
 
int snd_rawmidi_status (snd_rawmidi_t *rmidi, snd_rawmidi_status_t *status)
 get status of rawmidi stream More...
 
int snd_rawmidi_drain (snd_rawmidi_t *rmidi)
 drain all bytes in the rawmidi I/O ring buffer More...
 
int snd_rawmidi_drop (snd_rawmidi_t *rmidi)
 drop all bytes in the rawmidi I/O ring buffer immediately More...
 
ssize_t snd_rawmidi_write (snd_rawmidi_t *rmidi, const void *buffer, size_t size)
 write MIDI bytes to MIDI stream More...
 
ssize_t snd_rawmidi_read (snd_rawmidi_t *rmidi, void *buffer, size_t size)
 read MIDI bytes from MIDI stream More...
 
const char * snd_rawmidi_name (snd_rawmidi_t *rmidi)
 get identifier of RawMidi handle More...
 
snd_rawmidi_type_t snd_rawmidi_type (snd_rawmidi_t *rmidi)
 get type of RawMidi handle More...
 
snd_rawmidi_stream_t snd_rawmidi_stream (snd_rawmidi_t *rawmidi)
 get stream (direction) of RawMidi handle More...
 

Detailed Description

The RawMidi Interface. See RawMidi interface page for more details.

Macro Definition Documentation

#define SND_RAWMIDI_APPEND

Append (flag to open mode)

#define SND_RAWMIDI_DLSYM_VERSION   _dlsym_rawmidi_001

dlsym version for interface entry callback

#define snd_rawmidi_info_alloca (   ptr)

allocate an invalid snd_rawmidi_info_t using standard alloca

Parameters
ptrreturned pointer
#define SND_RAWMIDI_NONBLOCK

Non blocking mode (flag to open mode)

#define snd_rawmidi_params_alloca (   ptr)

allocate an invalid snd_rawmidi_params_t using standard alloca

Parameters
ptrreturned pointer
#define snd_rawmidi_status_alloca (   ptr)

allocate an invalid snd_rawmidi_status_t using standard alloca

Parameters
ptrreturned pointer
#define SND_RAWMIDI_SYNC

Write sync mode (Flag to open mode)

Typedef Documentation

typedef struct _snd_rawmidi_info snd_rawmidi_info_t

RawMidi information container

typedef struct _snd_rawmidi_params snd_rawmidi_params_t

RawMidi settings container

typedef struct _snd_rawmidi_status snd_rawmidi_status_t

RawMidi status container

typedef struct _snd_rawmidi snd_rawmidi_t

RawMidi handle

Enumeration Type Documentation

RawMidi stream (direction)

Enumerator
SND_RAWMIDI_STREAM_OUTPUT 

Output stream

SND_RAWMIDI_STREAM_INPUT 

Input stream

RawMidi type

Enumerator
SND_RAWMIDI_TYPE_HW 

Kernel level RawMidi

SND_RAWMIDI_TYPE_SHM 

Shared memory client RawMidi (not yet implemented)

SND_RAWMIDI_TYPE_INET 

INET client RawMidi (not yet implemented)

SND_RAWMIDI_TYPE_VIRTUAL 

Virtual (sequencer) RawMidi

Function Documentation

int snd_rawmidi_close ( snd_rawmidi_t rawmidi)

close RawMidi handle

Parameters
rawmidiRawMidi handle
Returns
0 on success otherwise a negative error code

Closes the specified RawMidi handle and frees all associated resources.

Examples:
/test/rawmidi.c.
int snd_rawmidi_drain ( snd_rawmidi_t rawmidi)

drain all bytes in the rawmidi I/O ring buffer

Parameters
rawmidiRawMidi handle
Returns
0 on success otherwise a negative error code

Waits until all MIDI bytes are not drained (sent) to the hardware device.

Examples:
/test/rawmidi.c.
int snd_rawmidi_drop ( snd_rawmidi_t rawmidi)

drop all bytes in the rawmidi I/O ring buffer immediately

Parameters
rawmidiRawMidi handle
Returns
0 on success otherwise a negative error code
int snd_rawmidi_info ( snd_rawmidi_t rawmidi,
snd_rawmidi_info_t info 
)

get information about RawMidi handle

Parameters
rawmidiRawMidi handle
infopointer to a snd_rawmidi_info_t structure to be filled
Returns
0 on success otherwise a negative error code
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

Parameters
dstdestination snd_rawmidi_info_t structure
srcsource snd_rawmidi_info_t structure
void snd_rawmidi_info_free ( snd_rawmidi_info_t info)

frees the snd_rawmidi_info_t structure

Parameters
infopointer to the snd_rawmidi_info_t structure to free

Frees the given snd_rawmidi_params_t structure using the standard free C library function.

int snd_rawmidi_info_get_card ( const snd_rawmidi_info_t info)

get rawmidi card number

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi card number
unsigned int snd_rawmidi_info_get_device ( const snd_rawmidi_info_t info)

get rawmidi device number

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi device number
unsigned int snd_rawmidi_info_get_flags ( const snd_rawmidi_info_t info)

get rawmidi flags

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi flags
const char* snd_rawmidi_info_get_id ( const snd_rawmidi_info_t info)

get rawmidi hardware driver identifier

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi hardware driver identifier
const char* snd_rawmidi_info_get_name ( const snd_rawmidi_info_t info)

get rawmidi hardware driver name

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi hardware driver name
snd_rawmidi_stream_t snd_rawmidi_info_get_stream ( const snd_rawmidi_info_t info)

get rawmidi stream identification

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi stream identification
unsigned int snd_rawmidi_info_get_subdevice ( const snd_rawmidi_info_t info)

get rawmidi subdevice number

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi subdevice number
const char* snd_rawmidi_info_get_subdevice_name ( const snd_rawmidi_info_t info)

get rawmidi subdevice name

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi subdevice name
unsigned int snd_rawmidi_info_get_subdevices_avail ( const snd_rawmidi_info_t info)

get rawmidi available count of subdevices

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi available count of subdevices
unsigned int snd_rawmidi_info_get_subdevices_count ( const snd_rawmidi_info_t info)

get rawmidi count of subdevices

Parameters
infopointer to a snd_rawmidi_info_t structure
Returns
rawmidi count of subdevices
int snd_rawmidi_info_malloc ( snd_rawmidi_info_t **  info)

allocate a new snd_rawmidi_info_t structure

Parameters
inforeturned pointer
Returns
0 on success otherwise a negative error code if fails

Allocates a new snd_rawmidi_params_t structure using the standard malloc C library function.

void snd_rawmidi_info_set_device ( snd_rawmidi_info_t info,
unsigned int  val 
)

set rawmidi device number

Parameters
infopointer to a snd_rawmidi_info_t structure
valdevice number
void snd_rawmidi_info_set_stream ( snd_rawmidi_info_t info,
snd_rawmidi_stream_t  val 
)

set rawmidi stream identifier

Parameters
infopointer to a snd_rawmidi_info_t structure
valrawmidi stream identifier
void snd_rawmidi_info_set_subdevice ( snd_rawmidi_info_t info,
unsigned int  val 
)

set rawmidi subdevice number

Parameters
infopointer to a snd_rawmidi_info_t structure
valsubdevice number
size_t snd_rawmidi_info_sizeof ( void  )

get size of the snd_rawmidi_info_t structure in bytes

Returns
size of the snd_rawmidi_info_t structure in bytes
const char* snd_rawmidi_name ( snd_rawmidi_t rawmidi)

get identifier of RawMidi handle

Parameters
rawmidia RawMidi handle
Returns
ascii identifier of RawMidi handle

Returns the ASCII identifier of given RawMidi handle. It's the same identifier specified in snd_rawmidi_open().

int snd_rawmidi_nonblock ( snd_rawmidi_t rawmidi,
int  nonblock 
)

set nonblock mode

Parameters
rawmidiRawMidi handle
nonblock0 = block, 1 = nonblock mode
Returns
0 on success otherwise a negative error code

The nonblock mode cannot be used when the stream is in SND_RAWMIDI_APPEND state.

int snd_rawmidi_open ( snd_rawmidi_t **  inputp,
snd_rawmidi_t **  outputp,
const char *  name,
int  mode 
)

Opens a new connection to the RawMidi interface.

Parameters
inputpReturned input handle (NULL if not wanted)
outputpReturned output handle (NULL if not wanted)
nameASCII identifier of the RawMidi handle
modeOpen mode
Returns
0 on success otherwise a negative error code

Opens a new connection to the RawMidi interface specified with an ASCII identifier and mode.

Examples:
/test/rawmidi.c.
int snd_rawmidi_open_lconf ( snd_rawmidi_t **  inputp,
snd_rawmidi_t **  outputp,
const char *  name,
int  mode,
snd_config_t lconf 
)

Opens a new connection to the RawMidi interface using local configuration.

Parameters
inputpReturned input handle (NULL if not wanted)
outputpReturned output handle (NULL if not wanted)
nameASCII identifier of the RawMidi handle
modeOpen mode
lconfLocal configuration
Returns
0 on success otherwise a negative error code

Opens a new connection to the RawMidi interface specified with an ASCII identifier and mode.

int snd_rawmidi_params ( snd_rawmidi_t rawmidi,
snd_rawmidi_params_t params 
)

set parameters about rawmidi stream

Parameters
rawmidiRawMidi handle
paramspointer to a snd_rawmidi_params_t structure to be filled
Returns
0 on success otherwise a negative error code
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

Parameters
dstdestination snd_rawmidi_params_t structure
srcsource snd_rawmidi_params_t structure
int snd_rawmidi_params_current ( snd_rawmidi_t rawmidi,
snd_rawmidi_params_t params 
)

get current parameters about rawmidi stream

Parameters
rawmidiRawMidi handle
paramspointer to a snd_rawmidi_params_t structure to be filled
Returns
0 on success otherwise a negative error code
void snd_rawmidi_params_free ( snd_rawmidi_params_t params)

frees the snd_rawmidi_params_t structure

Parameters
paramspointer to the snd_rawmidi_params_t structure to free

Frees the given snd_rawmidi_params_t structure using the standard free C library function.

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

Parameters
paramspointer to snd_rawmidi_params_t structure
Returns
minimum available bytes
size_t snd_rawmidi_params_get_buffer_size ( const snd_rawmidi_params_t params)

get rawmidi I/O ring buffer size

Parameters
paramspointer to a snd_rawmidi_params_t structure
Returns
size of rawmidi I/O ring buffer in bytes
int snd_rawmidi_params_get_no_active_sensing ( const snd_rawmidi_params_t params)

get no-active-sensing action status

Parameters
paramspointer to snd_rawmidi_params_t structure
Returns
the current status (0 = enable, 1 = disable the active sensing message)
int snd_rawmidi_params_malloc ( snd_rawmidi_params_t **  params)

allocate the snd_rawmidi_params_t structure

Parameters
paramsreturned pointer
Returns
0 on success otherwise a negative error code if fails

Allocates a new snd_rawmidi_params_t structure using the standard malloc C library function.

int snd_rawmidi_params_set_avail_min ( snd_rawmidi_t rawmidi,
snd_rawmidi_params_t params,
size_t  val 
)

set minimum available bytes in rawmidi I/O ring buffer for wakeup

Parameters
rawmidiRawMidi handle
paramspointer to a snd_rawmidi_params_t structure
valdesired value
int snd_rawmidi_params_set_buffer_size ( snd_rawmidi_t rawmidi,
snd_rawmidi_params_t params,
size_t  val 
)

set rawmidi I/O ring buffer size

Parameters
rawmidiRawMidi handle
paramspointer to a snd_rawmidi_params_t structure
valsize in bytes
Returns
0 on success otherwise a negative error code
int snd_rawmidi_params_set_no_active_sensing ( snd_rawmidi_t rawmidi,
snd_rawmidi_params_t params,
int  val 
)

set no-active-sensing action on snd_rawmidi_close()

Parameters
rawmidiRawMidi handle
paramspointer to snd_rawmidi_params_t structure
valvalue: 0 = enable to send the active sensing message, 1 = disable
Returns
0 on success otherwise a negative error code
size_t snd_rawmidi_params_sizeof ( void  )

get size of the snd_rawmidi_params_t structure in bytes

Returns
size of the snd_rawmidi_params_t structure in bytes
int snd_rawmidi_poll_descriptors ( snd_rawmidi_t rawmidi,
struct pollfd *  pfds,
unsigned int  space 
)

get poll descriptors

Parameters
rawmidiRawMidi handle
pfdsarray of poll descriptors
spacespace in the poll descriptor array
Returns
count of filled descriptors
int snd_rawmidi_poll_descriptors_count ( snd_rawmidi_t rawmidi)

get count of poll descriptors for RawMidi handle

Parameters
rawmidiRawMidi handle
Returns
count of poll descriptors
int snd_rawmidi_poll_descriptors_revents ( snd_rawmidi_t rawmidi,
struct pollfd *  pfds,
unsigned int  nfds,
unsigned short *  revents 
)

get returned events from poll descriptors

Parameters
rawmidirawmidi RawMidi handle
pfdsarray of poll descriptors
nfdscount of poll descriptors
reventsreturned events
Returns
zero if success, otherwise a negative error code
ssize_t snd_rawmidi_read ( snd_rawmidi_t rawmidi,
void *  buffer,
size_t  size 
)

read MIDI bytes from MIDI stream

Parameters
rawmidiRawMidi handle
bufferbuffer to store the input MIDI bytes
sizeinput buffer size in bytes
Examples:
/test/rawmidi.c.
int snd_rawmidi_status ( snd_rawmidi_t rawmidi,
snd_rawmidi_status_t status 
)

get status of rawmidi stream

Parameters
rawmidiRawMidi handle
statuspointer to a snd_rawmidi_status_t structure to be filled
Returns
0 on success otherwise a negative error code
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

Parameters
dstdestination snd_rawmidi_status_t structure
srcsource snd_rawmidi_status_t structure
void snd_rawmidi_status_free ( snd_rawmidi_status_t status)

frees the snd_rawmidi_status_t structure

Parameters
statuspointer to the snd_rawmidi_status_t structure to free

Frees the given snd_rawmidi_status_t structure using the standard free C library function.

size_t snd_rawmidi_status_get_avail ( const snd_rawmidi_status_t status)

get current available bytes in the rawmidi I/O ring buffer

Parameters
statuspointer to a snd_rawmidi_status_t structure
Returns
current available bytes in the rawmidi I/O ring buffer
void snd_rawmidi_status_get_tstamp ( const snd_rawmidi_status_t status,
snd_htimestamp_t tstamp 
)

get the start timestamp

Parameters
statuspointer to a snd_rawmidi_status_t structure
tstampreturned timestamp value
size_t snd_rawmidi_status_get_xruns ( const snd_rawmidi_status_t status)

get count of xruns

Parameters
statuspointer to a snd_rawmidi_status_t structure
Returns
count of xruns
int snd_rawmidi_status_malloc ( snd_rawmidi_status_t **  ptr)

allocate the snd_rawmidi_status_t structure

Parameters
ptrreturned pointer
Returns
0 on success otherwise a negative error code if fails

Allocates a new snd_rawmidi_status_t structure using the standard malloc C library function.

size_t snd_rawmidi_status_sizeof ( void  )

get size of the snd_rawmidi_status_t structure in bytes

Returns
size of the snd_rawmidi_status_t structure in bytes
snd_rawmidi_stream_t snd_rawmidi_stream ( snd_rawmidi_t rawmidi)

get stream (direction) of RawMidi handle

Parameters
rawmidia RawMidi handle
Returns
stream of RawMidi handle

Returns the stream snd_rawmidi_stream_t of given RawMidi handle.

snd_rawmidi_type_t snd_rawmidi_type ( snd_rawmidi_t rawmidi)

get type of RawMidi handle

Parameters
rawmidia RawMidi handle
Returns
type of RawMidi handle

Returns the type snd_rawmidi_type_t of given RawMidi handle.

ssize_t snd_rawmidi_write ( snd_rawmidi_t rawmidi,
const void *  buffer,
size_t  size 
)

write MIDI bytes to MIDI stream

Parameters
rawmidiRawMidi handle
bufferbuffer containing MIDI bytes
sizeoutput buffer size in bytes
Examples:
/test/rawmidi.c.

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