Functions | |
int | snd_config_get_bool_ascii (const char *ascii) |
Gets the boolean value from the given ASCII string. | |
int | snd_config_get_bool (const snd_config_t *conf) |
Gets the boolean value from a configuration node. | |
int | snd_config_get_ctl_iface_ascii (const char *ascii) |
Gets the control interface index from the given ASCII string. | |
int | snd_config_get_ctl_iface (const snd_config_t *conf) |
Gets the control interface index from a configuration node. | |
int | snd_func_getenv (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns an environment value. | |
int | snd_func_igetenv (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns an integer environment value. | |
int | snd_func_concat (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Merges the given strings. | |
int | snd_func_datadir (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the ALSA data directory. | |
int | snd_func_private_string (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the string from private_data . | |
int | snd_func_private_card_driver (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the driver identification from private_data . | |
int | snd_func_card_driver (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the driver identification for a card. | |
int | snd_func_card_id (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the identification of a card. | |
int | snd_func_pcm_id (snd_config_t **dst, snd_config_t *root, snd_config_t *src, void *private_data) |
Returns the pcm identification of a device. | |
int | snd_func_pcm_args_by_class (snd_config_t **dst, snd_config_t *root, snd_config_t *src, void *private_data) |
Returns the pcm card and device arguments (in form CARD=N,DEV=M) for pcm specified by class and index. | |
int | snd_func_private_pcm_subdevice (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Returns the PCM subdevice from private_data . | |
int | snd_func_refer (snd_config_t **dst, snd_config_t *root, snd_config_t *src, snd_config_t *private_data) |
Copies the specified configuration node. |
See the Runtime functions in configuration files page for more details.
int snd_func_card_driver | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the driver identification for a card.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with a card definition. | |
private_data | Handle to the private_data node. |
{ @func card_driver card 0 }
int snd_func_card_id | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the identification of a card.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with a card definition. | |
private_data | Handle to the private_data node. |
{ @func card_id card 0 }
int snd_func_concat | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Merges the given strings.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with a definition for strings . | |
private_data | Handle to the private_data node. |
{ @func concat strings [ "a1" "b2" "c3" ] }
int snd_func_datadir | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the ALSA data directory.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node. | |
private_data | Handle to the private_data node. Not used. |
{ @func datadir }
int snd_func_getenv | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns an environment value.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with definitions for vars and default . | |
private_data | Handle to the private_data node. |
{
@func getenv
vars [ MY_CARD CARD C ]
default 0
}
int snd_func_igetenv | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns an integer environment value.
dst | The function puts the handle to the result configuration node (with type integer) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with definitions for vars and default . | |
private_data | Handle to the private_data node. |
{
@func igetenv
vars [ MY_DEVICE DEVICE D ]
default 0
}
int snd_func_pcm_args_by_class | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
void * | private_data | |||
) |
Returns the pcm card and device arguments (in form CARD=N,DEV=M) for pcm specified by class and index.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with definitions for class and index . | |
private_data | Handle to the private_data node. |
{
@func pcm_args_by_class
class 0
index 0
}
int snd_func_pcm_id | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
void * | private_data | |||
) |
Returns the pcm identification of a device.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with definitions for card , device and (optionally) subdevice . | |
private_data | Handle to the private_data node. |
{ @func pcm_id card 0 device 0 subdevice 0 # optional }
int snd_func_private_card_driver | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the driver identification from private_data
.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node. | |
private_data | Handle to the private_data node (type integer, id "card"). |
{ @func private_card_driver }
int snd_func_private_pcm_subdevice | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the PCM subdevice from private_data
.
dst | The function puts the handle to the result configuration node (with type integer) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node. | |
private_data | Handle to the private_data node (type pointer, id "pcm_handle"). |
{ @func private_pcm_subdevice }
int snd_func_private_string | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Returns the string from private_data
.
dst | The function puts the handle to the result configuration node (with type string) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node. | |
private_data | Handle to the private_data node (type string, id "string"). |
{ @func private_string }
int snd_func_refer | ( | snd_config_t ** | dst, | |
snd_config_t * | root, | |||
snd_config_t * | src, | |||
snd_config_t * | private_data | |||
) |
Copies the specified configuration node.
dst | The function puts the handle to the result configuration node (with the same type as the specified node) at the address specified by dst . | |
root | Handle to the root source node. | |
src | Handle to the source node, with definitions for name and (optionally) file . | |
private_data | Handle to the private_data node. |
{ @func refer file "/etc/myconf.conf" # optional name "id1.id2.id3" }