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control.c File Reference

CTL interface - primitive controls. More...


Functions

const char * snd_ctl_name (snd_ctl_t *ctl)
 get identifier of CTL handle. More...

snd_ctl_type_t snd_ctl_type (snd_ctl_t *ctl)
 get type of CTL handle. More...

int snd_ctl_close (snd_ctl_t *ctl)
 close CTL handle. More...

int snd_ctl_nonblock (snd_ctl_t *ctl, int nonblock)
 set nonblock mode. More...

int snd_ctl_poll_descriptors_count (snd_ctl_t *ctl)
 get count of poll descriptors for CTL handle. More...

int snd_ctl_poll_descriptors (snd_ctl_t *ctl, struct pollfd *pfds, unsigned int space)
 get poll descriptors. More...

int snd_ctl_poll_descriptors_revents (snd_ctl_t *ctl, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
 get returned events from poll descriptors. More...

int snd_ctl_subscribe_events (snd_ctl_t *ctl, int subscribe)
 Ask to be informed about events (poll, snd_ctl_async, snd_ctl_read). More...

int snd_ctl_card_info (snd_ctl_t *ctl, snd_ctl_card_info_t *info)
 Get card related information. More...

int snd_ctl_elem_list (snd_ctl_t *ctl, snd_ctl_elem_list_t *list)
 Get a list of element identifiers. More...

int snd_ctl_elem_info (snd_ctl_t *ctl, snd_ctl_elem_info_t *info)
 Get CTL element information. More...

int snd_ctl_elem_read (snd_ctl_t *ctl, snd_ctl_elem_value_t *control)
 Get CTL element value. More...

int snd_ctl_elem_write (snd_ctl_t *ctl, snd_ctl_elem_value_t *control)
 Set CTL element value. More...

int snd_ctl_elem_lock (snd_ctl_t *ctl, snd_ctl_elem_id_t *id)
 Lock CTL element. More...

int snd_ctl_elem_unlock (snd_ctl_t *ctl, snd_ctl_elem_id_t *id)
 Unlock CTL element. More...

int snd_ctl_hwdep_next_device (snd_ctl_t *ctl, int *device)
 Get next hardware dependent device number. More...

int snd_ctl_hwdep_info (snd_ctl_t *ctl, snd_hwdep_info_t *info)
 Get info about a hardware dependent device. More...

int snd_ctl_pcm_next_device (snd_ctl_t *ctl, int *device)
 Get next PCM device number. More...

int snd_ctl_pcm_info (snd_ctl_t *ctl, snd_pcm_info_t *info)
 Get info about a PCM device. More...

int snd_ctl_pcm_prefer_subdevice (snd_ctl_t *ctl, int subdev)
 Set preferred PCM subdevice number of successive PCM open. More...

int snd_ctl_rawmidi_next_device (snd_ctl_t *ctl, int *device)
 Get next RawMidi device number. More...

int snd_ctl_rawmidi_info (snd_ctl_t *ctl, snd_rawmidi_info_t *info)
 Get info about a RawMidi device. More...

int snd_ctl_rawmidi_prefer_subdevice (snd_ctl_t *ctl, int subdev)
 Set preferred RawMidi subdevice number of successive RawMidi open. More...

int snd_ctl_set_power_state (snd_ctl_t *ctl, unsigned int state)
 Set Power State to given SND_CTL_POWER_* value and do the power management. More...

int snd_ctl_get_power_state (snd_ctl_t *ctl, unsigned int *state)
 Get actual Power State. More...

int snd_ctl_read (snd_ctl_t *ctl, snd_ctl_event_t *event)
 Read an event. More...

int snd_ctl_wait (snd_ctl_t *ctl, int timeout)
 Wait for a CTL to become ready (i.e. at least one event pending). More...

int snd_async_add_ctl_handler (snd_async_handler_t **handler, snd_ctl_t *ctl, snd_async_callback_t callback, void *private_data)
 Add an async handler for a CTL. More...

snd_ctl_tsnd_async_handler_get_ctl (snd_async_handler_t *handler)
 Return CTL handle related to an async handler. More...

int snd_ctl_open (snd_ctl_t **ctlp, const char *name, int mode)
 Opens a CTL. More...

int snd_ctl_open_lconf (snd_ctl_t **ctlp, const char *name, int mode, snd_config_t *lconf)
 Opens a CTL using local configuration. More...

void snd_ctl_elem_set_bytes (snd_ctl_elem_value_t *obj, void *data, size_t size)
 Set CTL element SND_CTL_ELEM_TYPE_BYTES value. More...

const char * snd_ctl_elem_type_name (snd_ctl_elem_type_t type)
 get name of a CTL element type. More...

const char * snd_ctl_elem_iface_name (snd_ctl_elem_iface_t iface)
 get name of a CTL element related interface. More...

const char * snd_ctl_event_type_name (snd_ctl_event_type_t type)
 get name of a CTL event type. More...

int snd_ctl_elem_list_alloc_space (snd_ctl_elem_list_t *obj, unsigned int entries)
 allocate space for CTL element identifiers list. More...

void snd_ctl_elem_list_free_space (snd_ctl_elem_list_t *obj)
 free previously allocated space for CTL element identifiers list. More...

unsigned int snd_ctl_event_elem_get_mask (const snd_ctl_event_t *obj)
 Get event mask for an element related event. More...

void snd_ctl_event_elem_get_id (const snd_ctl_event_t *obj, snd_ctl_elem_id_t *ptr)
 Get CTL element identifier for an element related event. More...

unsigned int snd_ctl_event_elem_get_numid (const snd_ctl_event_t *obj)
 Get element numeric identifier for an element related event. More...

snd_ctl_elem_iface_t snd_ctl_event_elem_get_interface (const snd_ctl_event_t *obj)
 Get interface part of CTL element identifier for an element related event. More...

unsigned int snd_ctl_event_elem_get_device (const snd_ctl_event_t *obj)
 Get device part of CTL element identifier for an element related event. More...

unsigned int snd_ctl_event_elem_get_subdevice (const snd_ctl_event_t *obj)
 Get subdevice part of CTL element identifier for an element related event. More...

const char * snd_ctl_event_elem_get_name (const snd_ctl_event_t *obj)
 Get name part of CTL element identifier for an element related event. More...

unsigned int snd_ctl_event_elem_get_index (const snd_ctl_event_t *obj)
 Get index part of CTL element identifier for an element related event. More...

size_t snd_ctl_elem_id_sizeof ()
 get size of snd_ctl_elem_id_t. More...

int snd_ctl_elem_id_malloc (snd_ctl_elem_id_t **ptr)
 allocate an invalid snd_ctl_elem_id_t using standard malloc. More...

void snd_ctl_elem_id_free (snd_ctl_elem_id_t *obj)
 frees a previously allocated snd_ctl_elem_id_t. More...

void snd_ctl_elem_id_clear (snd_ctl_elem_id_t *obj)
 clear given snd_ctl_elem_id_t object. More...

void snd_ctl_elem_id_copy (snd_ctl_elem_id_t *dst, const snd_ctl_elem_id_t *src)
 copy one snd_ctl_elem_id_t to another. More...

unsigned int snd_ctl_elem_id_get_numid (const snd_ctl_elem_id_t *obj)
 Get numeric identifier from a CTL element identifier. More...

snd_ctl_elem_iface_t snd_ctl_elem_id_get_interface (const snd_ctl_elem_id_t *obj)
 Get interface part of a CTL element identifier. More...

unsigned int snd_ctl_elem_id_get_device (const snd_ctl_elem_id_t *obj)
 Get device part of a CTL element identifier. More...

unsigned int snd_ctl_elem_id_get_subdevice (const snd_ctl_elem_id_t *obj)
 Get subdevice part of a CTL element identifier. More...

const char * snd_ctl_elem_id_get_name (const snd_ctl_elem_id_t *obj)
 Get name part of a CTL element identifier. More...

unsigned int snd_ctl_elem_id_get_index (const snd_ctl_elem_id_t *obj)
 Get index part of a CTL element identifier. More...

void snd_ctl_elem_id_set_numid (snd_ctl_elem_id_t *obj, unsigned int val)
 Set numeric identifier for a CTL element identifier. More...

void snd_ctl_elem_id_set_interface (snd_ctl_elem_id_t *obj, snd_ctl_elem_iface_t val)
 Set interface part for a CTL element identifier. More...

void snd_ctl_elem_id_set_device (snd_ctl_elem_id_t *obj, unsigned int val)
 Set device part for a CTL element identifier. More...

void snd_ctl_elem_id_set_subdevice (snd_ctl_elem_id_t *obj, unsigned int val)
 Set subdevice part for a CTL element identifier. More...

void snd_ctl_elem_id_set_name (snd_ctl_elem_id_t *obj, const char *val)
 Set name part for a CTL element identifier. More...

void snd_ctl_elem_id_set_index (snd_ctl_elem_id_t *obj, unsigned int val)
 Set index part for a CTL element identifier. More...

size_t snd_ctl_card_info_sizeof ()
 get size of snd_ctl_card_info_t. More...

int snd_ctl_card_info_malloc (snd_ctl_card_info_t **ptr)
 allocate an invalid snd_ctl_card_info_t using standard malloc. More...

void snd_ctl_card_info_free (snd_ctl_card_info_t *obj)
 frees a previously allocated snd_ctl_card_info_t. More...

void snd_ctl_card_info_clear (snd_ctl_card_info_t *obj)
 clear given snd_ctl_card_info_t object. More...

void snd_ctl_card_info_copy (snd_ctl_card_info_t *dst, const snd_ctl_card_info_t *src)
 copy one snd_ctl_card_info_t to another. More...

int snd_ctl_card_info_get_card (const snd_ctl_card_info_t *obj)
 Get card number from a CTL card info. More...

const char * snd_ctl_card_info_get_id (const snd_ctl_card_info_t *obj)
 Get card identifier from a CTL card info. More...

const char * snd_ctl_card_info_get_driver (const snd_ctl_card_info_t *obj)
 Get card driver name from a CTL card info. More...

const char * snd_ctl_card_info_get_name (const snd_ctl_card_info_t *obj)
 Get card name from a CTL card info. More...

const char * snd_ctl_card_info_get_longname (const snd_ctl_card_info_t *obj)
 Get card long name from a CTL card info. More...

const char * snd_ctl_card_info_get_mixername (const snd_ctl_card_info_t *obj)
 Get card mixer name from a CTL card info. More...

const char * snd_ctl_card_info_get_components (const snd_ctl_card_info_t *obj)
 Get card component list from a CTL card info. More...

size_t snd_ctl_event_sizeof ()
 get size of snd_ctl_event_t. More...

int snd_ctl_event_malloc (snd_ctl_event_t **ptr)
 allocate an invalid snd_ctl_event_t using standard malloc. More...

void snd_ctl_event_free (snd_ctl_event_t *obj)
 frees a previously allocated snd_ctl_event_t. More...

void snd_ctl_event_clear (snd_ctl_event_t *obj)
 clear given snd_ctl_event_t object. More...

void snd_ctl_event_copy (snd_ctl_event_t *dst, const snd_ctl_event_t *src)
 copy one snd_ctl_event_t to another. More...

snd_ctl_event_type_t snd_ctl_event_get_type (const snd_ctl_event_t *obj)
 Get type of a CTL event. More...

size_t snd_ctl_elem_list_sizeof ()
 get size of snd_ctl_elem_list_t. More...

int snd_ctl_elem_list_malloc (snd_ctl_elem_list_t **ptr)
 allocate an invalid snd_ctl_elem_list_t using standard malloc. More...

void snd_ctl_elem_list_free (snd_ctl_elem_list_t *obj)
 frees a previously allocated snd_ctl_elem_list_t. More...

void snd_ctl_elem_list_clear (snd_ctl_elem_list_t *obj)
 clear given snd_ctl_elem_list_t object. More...

void snd_ctl_elem_list_copy (snd_ctl_elem_list_t *dst, const snd_ctl_elem_list_t *src)
 copy one snd_ctl_elem_list_t to another. More...

void snd_ctl_elem_list_set_offset (snd_ctl_elem_list_t *obj, unsigned int val)
 Set index of first wanted CTL element identifier in a CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_used (const snd_ctl_elem_list_t *obj)
 Get number of used entries in CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_count (const snd_ctl_elem_list_t *obj)
 Get total count of elements present in CTL device (information present in every filled CTL element identifiers list). More...

void snd_ctl_elem_list_get_id (const snd_ctl_elem_list_t *obj, unsigned int idx, snd_ctl_elem_id_t *ptr)
 Get CTL element identifier for an entry of a CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_numid (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get CTL element numeric identifier for an entry of a CTL element identifiers list. More...

snd_ctl_elem_iface_t snd_ctl_elem_list_get_interface (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get interface part of CTL element identifier for an entry of a CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_device (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get device part of CTL element identifier for an entry of a CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_subdevice (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get subdevice part of CTL element identifier for an entry of a CTL element identifiers list. More...

const char * snd_ctl_elem_list_get_name (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get name part of CTL element identifier for an entry of a CTL element identifiers list. More...

unsigned int snd_ctl_elem_list_get_index (const snd_ctl_elem_list_t *obj, unsigned int idx)
 Get index part of CTL element identifier for an entry of a CTL element identifiers list. More...

size_t snd_ctl_elem_info_sizeof ()
 get size of snd_ctl_elem_info_t. More...

int snd_ctl_elem_info_malloc (snd_ctl_elem_info_t **ptr)
 allocate an invalid snd_ctl_elem_info_t using standard malloc. More...

void snd_ctl_elem_info_free (snd_ctl_elem_info_t *obj)
 frees a previously allocated snd_ctl_elem_info_t. More...

void snd_ctl_elem_info_clear (snd_ctl_elem_info_t *obj)
 clear given snd_ctl_elem_info_t object. More...

void snd_ctl_elem_info_copy (snd_ctl_elem_info_t *dst, const snd_ctl_elem_info_t *src)
 copy one snd_ctl_elem_info_t to another. More...

snd_ctl_elem_type_t snd_ctl_elem_info_get_type (const snd_ctl_elem_info_t *obj)
 Get type from a CTL element id/info. More...

int snd_ctl_elem_info_is_readable (const snd_ctl_elem_info_t *obj)
 Get info about readability from a CTL element id/info. More...

int snd_ctl_elem_info_is_writable (const snd_ctl_elem_info_t *obj)
 Get info about writability from a CTL element id/info. More...

int snd_ctl_elem_info_is_volatile (const snd_ctl_elem_info_t *obj)
 Get info about notification feasibility from a CTL element id/info. More...

int snd_ctl_elem_info_is_inactive (const snd_ctl_elem_info_t *obj)
 Get info about status from a CTL element id/info. More...

int snd_ctl_elem_info_is_locked (const snd_ctl_elem_info_t *obj)
 Get info whether an element is locked. More...

int snd_ctl_elem_info_is_owner (const snd_ctl_elem_info_t *obj)
 Get info if I own an element. More...

int snd_ctl_elem_info_is_indirect (const snd_ctl_elem_info_t *obj)
 Get info about values passing policy from a CTL element id/info. More...

pid_t snd_ctl_elem_info_get_owner (const snd_ctl_elem_info_t *obj)
 Get owner of a locked element. More...

unsigned int snd_ctl_elem_info_get_count (const snd_ctl_elem_info_t *obj)
 Get number of value entries from a CTL element id/info. More...

long snd_ctl_elem_info_get_min (const snd_ctl_elem_info_t *obj)
 Get minimum value from a SND_CTL_ELEM_TYPE_INTEGER CTL element id/info. More...

long snd_ctl_elem_info_get_max (const snd_ctl_elem_info_t *obj)
 Get maximum value from a SND_CTL_ELEM_TYPE_INTEGER CTL element id/info. More...

long snd_ctl_elem_info_get_step (const snd_ctl_elem_info_t *obj)
 Get value step from a SND_CTL_ELEM_TYPE_INTEGER CTL element id/info. More...

long long snd_ctl_elem_info_get_min64 (const snd_ctl_elem_info_t *obj)
 Get minimum value from a SND_CTL_ELEM_TYPE_INTEGER64 CTL element id/info. More...

long long snd_ctl_elem_info_get_max64 (const snd_ctl_elem_info_t *obj)
 Get maximum value from a SND_CTL_ELEM_TYPE_INTEGER64 CTL element id/info. More...

long long snd_ctl_elem_info_get_step64 (const snd_ctl_elem_info_t *obj)
 Get value step from a SND_CTL_ELEM_TYPE_INTEGER64 CTL element id/info. More...

unsigned int snd_ctl_elem_info_get_items (const snd_ctl_elem_info_t *obj)
 Get number of items available from a SND_CTL_ELEM_TYPE_ENUMERATED CTL element id/info. More...

void snd_ctl_elem_info_set_item (snd_ctl_elem_info_t *obj, unsigned int val)
 Select item in a SND_CTL_ELEM_TYPE_ENUMERATED CTL element id/info. More...

const char * snd_ctl_elem_info_get_item_name (const snd_ctl_elem_info_t *obj)
 Get name for selected item in a SND_CTL_ELEM_TYPE_ENUMERATED CTL element id/info. More...

void snd_ctl_elem_info_get_id (const snd_ctl_elem_info_t *obj, snd_ctl_elem_id_t *ptr)
 Get CTL element identifier of a CTL element id/info. More...

unsigned int snd_ctl_elem_info_get_numid (const snd_ctl_elem_info_t *obj)
 Get element numeric identifier of a CTL element id/info. More...

snd_ctl_elem_iface_t snd_ctl_elem_info_get_interface (const snd_ctl_elem_info_t *obj)
 Get interface part of CTL element identifier of a CTL element id/info. More...

unsigned int snd_ctl_elem_info_get_device (const snd_ctl_elem_info_t *obj)
 Get device part of CTL element identifier of a CTL element id/info. More...

unsigned int snd_ctl_elem_info_get_subdevice (const snd_ctl_elem_info_t *obj)
 Get subdevice part of CTL element identifier of a CTL element id/info. More...

const char * snd_ctl_elem_info_get_name (const snd_ctl_elem_info_t *obj)
 Get name part of CTL element identifier of a CTL element id/info. More...

unsigned int snd_ctl_elem_info_get_index (const snd_ctl_elem_info_t *obj)
 Get index part of CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_id (snd_ctl_elem_info_t *obj, const snd_ctl_elem_id_t *ptr)
 Set CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_numid (snd_ctl_elem_info_t *obj, unsigned int val)
 Set element numeric identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_interface (snd_ctl_elem_info_t *obj, snd_ctl_elem_iface_t val)
 Set interface part of CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_device (snd_ctl_elem_info_t *obj, unsigned int val)
 Set device part of CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_subdevice (snd_ctl_elem_info_t *obj, unsigned int val)
 Set subdevice part of CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_name (snd_ctl_elem_info_t *obj, const char *val)
 Set name part of CTL element identifier of a CTL element id/info. More...

void snd_ctl_elem_info_set_index (snd_ctl_elem_info_t *obj, unsigned int val)
 Set index part of CTL element identifier of a CTL element id/info. More...

size_t snd_ctl_elem_value_sizeof ()
 get size of snd_ctl_elem_value_t. More...

int snd_ctl_elem_value_malloc (snd_ctl_elem_value_t **ptr)
 allocate an invalid snd_ctl_elem_value_t using standard malloc. More...

void snd_ctl_elem_value_free (snd_ctl_elem_value_t *obj)
 frees a previously allocated snd_ctl_elem_value_t. More...

void snd_ctl_elem_value_clear (snd_ctl_elem_value_t *obj)
 clear given snd_ctl_elem_value_t object. More...

void snd_ctl_elem_value_copy (snd_ctl_elem_value_t *dst, const snd_ctl_elem_value_t *src)
 copy one snd_ctl_elem_value_t to another. More...

void snd_ctl_elem_value_get_id (const snd_ctl_elem_value_t *obj, snd_ctl_elem_id_t *ptr)
 Get CTL element identifier of a CTL element id/value. More...

unsigned int snd_ctl_elem_value_get_numid (const snd_ctl_elem_value_t *obj)
 Get element numeric identifier of a CTL element id/value. More...

snd_ctl_elem_iface_t snd_ctl_elem_value_get_interface (const snd_ctl_elem_value_t *obj)
 Get interface part of CTL element identifier of a CTL element id/value. More...

unsigned int snd_ctl_elem_value_get_device (const snd_ctl_elem_value_t *obj)
 Get device part of CTL element identifier of a CTL element id/value. More...

unsigned int snd_ctl_elem_value_get_subdevice (const snd_ctl_elem_value_t *obj)
 Get subdevice part of CTL element identifier of a CTL element id/value. More...

const char * snd_ctl_elem_value_get_name (const snd_ctl_elem_value_t *obj)
 Get name part of CTL element identifier of a CTL element id/value. More...

unsigned int snd_ctl_elem_value_get_index (const snd_ctl_elem_value_t *obj)
 Get index part of CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_id (snd_ctl_elem_value_t *obj, const snd_ctl_elem_id_t *ptr)
 Set CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_numid (snd_ctl_elem_value_t *obj, unsigned int val)
 Set element numeric identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_interface (snd_ctl_elem_value_t *obj, snd_ctl_elem_iface_t val)
 Set interface part of CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_device (snd_ctl_elem_value_t *obj, unsigned int val)
 Set device part of CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_subdevice (snd_ctl_elem_value_t *obj, unsigned int val)
 Set subdevice part of CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_name (snd_ctl_elem_value_t *obj, const char *val)
 Set name part of CTL element identifier of a CTL element id/value. More...

void snd_ctl_elem_value_set_index (snd_ctl_elem_value_t *obj, unsigned int val)
 Set index part of CTL element identifier of a CTL element id/value. More...

int snd_ctl_elem_value_get_boolean (const snd_ctl_elem_value_t *obj, unsigned int idx)
 Get value for an entry of a SND_CTL_ELEM_TYPE_BOOLEAN CTL element id/value. More...

long snd_ctl_elem_value_get_integer (const snd_ctl_elem_value_t *obj, unsigned int idx)
 Get value for an entry of a SND_CTL_ELEM_TYPE_INTEGER CTL element id/value. More...

long long snd_ctl_elem_value_get_integer64 (const snd_ctl_elem_value_t *obj, unsigned int idx)
 Get value for an entry of a SND_CTL_ELEM_TYPE_INTEGER64 CTL element id/value. More...

unsigned int snd_ctl_elem_value_get_enumerated (const snd_ctl_elem_value_t *obj, unsigned int idx)
 Get value for an entry of a SND_CTL_ELEM_TYPE_ENUMERATED CTL element id/value. More...

unsigned char snd_ctl_elem_value_get_byte (const snd_ctl_elem_value_t *obj, unsigned int idx)
 Get value for an entry of a SND_CTL_ELEM_TYPE_BYTES CTL element id/value. More...

void snd_ctl_elem_value_set_boolean (snd_ctl_elem_value_t *obj, unsigned int idx, long val)
 Set value for an entry of a SND_CTL_ELEM_TYPE_BOOLEAN CTL element id/value. More...

void snd_ctl_elem_value_set_integer (snd_ctl_elem_value_t *obj, unsigned int idx, long val)
 Set value for an entry of a SND_CTL_ELEM_TYPE_INTEGER CTL element id/value. More...

void snd_ctl_elem_value_set_integer64 (snd_ctl_elem_value_t *obj, unsigned int idx, long long val)
 Set value for an entry of a SND_CTL_ELEM_TYPE_INTEGER64 CTL element id/value. More...

void snd_ctl_elem_value_set_enumerated (snd_ctl_elem_value_t *obj, unsigned int idx, unsigned int val)
 Set value for an entry of a SND_CTL_ELEM_TYPE_ENUMERATED CTL element id/value. More...

void snd_ctl_elem_value_set_byte (snd_ctl_elem_value_t *obj, unsigned int idx, unsigned char val)
 Set value for an entry of a SND_CTL_ELEM_TYPE_BYTES CTL element id/value. More...

const void * snd_ctl_elem_value_get_bytes (const snd_ctl_elem_value_t *obj)
 Get value for a SND_CTL_ELEM_TYPE_BYTES CTL element id/value. More...

void snd_ctl_elem_value_get_iec958 (const snd_ctl_elem_value_t *obj, snd_aes_iec958_t *ptr)
 Get value for a SND_CTL_ELEM_TYPE_IEC958 CTL element id/value. More...

void snd_ctl_elem_value_set_iec958 (snd_ctl_elem_value_t *obj, const snd_aes_iec958_t *ptr)
 Set value for a SND_CTL_ELEM_TYPE_IEC958 CTL element id/value. More...


Detailed Description

CTL interface - primitive controls.

Author:
Abramo Bagnara <abramo@alsa-project.org>
Date:
2000
CTL interface is designed to access primitive controls. See Control interface page for more details.


Generated on Thu Oct 24 15:14:54 2002 for ALSA project - the C library reference by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002