QNX Developer Support
Get the current configuration for the specified PCM channel (plugin aware)
#include <sys/asoundlib.h> int snd_pcm_plugin_setup( snd_pcm_t *handle, snd_pcm_channel_setup_t *setup );
- The handle for the PCM device, which you must have opened by calling snd_pcm_open() or snd_pcm_open_preferred().
- A pointer to a
structure that snd_pcm_plugin_setup() fills with information
about the current configuration of the PCM channel.
Set the setup structure's channel member to specify the direction. All other members are read-only.
The snd_pcm_plugin_setup() function fills the setup structure with information about the current configuration of the PCM channel selected by handle.
Zero on success, or a negative error code.
- Invalid handle; data pointer is NULL; setup->mode isn't SND_PCM_MODE_BLOCK.
See the wave.c example in the appendix.
This function is the plugin-aware version of snd_pcm_channel_setup(). It functions exactly the same way. However, make sure that you don't mix and match plugin- and nonplugin-aware functions in your application, or you may get undefined behavior and misleading results.