rawmidi.c File Reference

RawMidi Interface. More...

Functions
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.
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.
int	snd_rawmidi_close (snd_rawmidi_t *rawmidi)
	close RawMidi handle
const char *	snd_rawmidi_name (snd_rawmidi_t *rawmidi)
	get identifier of RawMidi handle
snd_rawmidi_type_t	snd_rawmidi_type (snd_rawmidi_t *rawmidi)
	get type of RawMidi handle
snd_rawmidi_stream_t	snd_rawmidi_stream (snd_rawmidi_t *rawmidi)
	get stream (direction) of RawMidi handle
int	snd_rawmidi_poll_descriptors_count (snd_rawmidi_t *rawmidi)
	get count of poll descriptors for RawMidi handle
int	snd_rawmidi_poll_descriptors (snd_rawmidi_t *rawmidi, 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 *revents)
	get returned events from poll descriptors
int	snd_rawmidi_nonblock (snd_rawmidi_t *rawmidi, int nonblock)
	set nonblock mode
size_t	snd_rawmidi_info_sizeof ()
	get size of the snd_rawmidi_info_t structure in bytes
int	snd_rawmidi_info_malloc (snd_rawmidi_info_t **info)
	allocate a new snd_rawmidi_info_t structure
void	snd_rawmidi_info_free (snd_rawmidi_info_t *info)
	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 *info)
	get rawmidi device number
unsigned int	snd_rawmidi_info_get_subdevice (const snd_rawmidi_info_t *info)
	get rawmidi subdevice number
snd_rawmidi_stream_t	snd_rawmidi_info_get_stream (const snd_rawmidi_info_t *info)
	get rawmidi stream identification
int	snd_rawmidi_info_get_card (const snd_rawmidi_info_t *info)
	get rawmidi card number
unsigned int	snd_rawmidi_info_get_flags (const snd_rawmidi_info_t *info)
	get rawmidi flags
const char *	snd_rawmidi_info_get_id (const snd_rawmidi_info_t *info)
	get rawmidi hardware driver identifier
const char *	snd_rawmidi_info_get_name (const snd_rawmidi_info_t *info)
	get rawmidi hardware driver name
const char *	snd_rawmidi_info_get_subdevice_name (const snd_rawmidi_info_t *info)
	get rawmidi subdevice name
unsigned int	snd_rawmidi_info_get_subdevices_count (const snd_rawmidi_info_t *info)
	get rawmidi count of subdevices
unsigned int	snd_rawmidi_info_get_subdevices_avail (const snd_rawmidi_info_t *info)
	get rawmidi available count of subdevices
void	snd_rawmidi_info_set_device (snd_rawmidi_info_t *info, unsigned int val)
	set rawmidi device number
void	snd_rawmidi_info_set_subdevice (snd_rawmidi_info_t *info, unsigned int val)
	set rawmidi subdevice number
void	snd_rawmidi_info_set_stream (snd_rawmidi_info_t *info, snd_rawmidi_stream_t val)
	set rawmidi stream identifier
int	snd_rawmidi_info (snd_rawmidi_t *rawmidi, snd_rawmidi_info_t *info)
	get information about RawMidi handle
size_t	snd_rawmidi_params_sizeof ()
	get size of the snd_rawmidi_params_t structure in bytes
int	snd_rawmidi_params_malloc (snd_rawmidi_params_t **params)
	allocate the snd_rawmidi_params_t structure
void	snd_rawmidi_params_free (snd_rawmidi_params_t *params)
	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 *rawmidi ATTRIBUTE_UNUSED, snd_rawmidi_params_t *params, size_t val) int snd_rawmidi_params_set_buffer_size(snd_rawmidi_t *rawmidi
	set rawmidi I/O ring buffer size
Variables
int snd_rawmidi_params_t *	params

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Detailed Description

RawMidi Interface.

Author:

Jaroslav Kysela <perex@suse.cz>

Abramo Bagnara <abramo@alsa-project.org>

Date:

2000-2001

See the RawMidi interface page for more details.

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Function Documentation

int snd_rawmidi_params_set_buffer_size (  snd_rawmidi_t *rawmidi  ATTRIBUTE_UNUSED, snd_rawmidi_params_t *  params, size_t  val )

set rawmidi I/O ring buffer size Parameters: rawmidi  RawMidi handle params  pointer to a snd_rawmidi_params_t structure val  size in bytes Returns: 0 on success otherwise a negative error code

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