Create a switch (type 2) element
#include <audio_driver.h> ado_mixer_delement_t *ado_mixer_element_sw2 ( ado_mixer_t *mixer, char *name, ado_mixer_delement_control_sw2_t *control, void *instance_data, void (*instance_free) (void *data) );
The prototype is:
int32_t control( MIXER_CONTEXT_T *context, ado_mixer_delement_t *element, uint8_t set, uint32_t *val, void *instance_data );
If you need to access this instance data, you have to call ado_mixer_get_element_instance_data() because ado_mixer_delement_t is an opaque data type.
The ado_mixer_element_sw2() convenience function automates the creation of a switch (type 2) element. A switch type 2 element represents a switch with a single input and output that can be open or closed with a separate control for each voice.
A pointer to the newly allocated switch (type 2) element.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | No |
ado_mixer_create(), ado_mixer_element_sw1(), ado_mixer_element_sw3(), ado_mixer_get_element_instance_data()