Get the runtime status of a PCM channel (plugin aware)
#include <sys/asoundlib.h> int snd_pcm_plugin_status( snd_pcm_t *handle, snd_pcm_channel_status_t *status );
Fill in the status structure's channel member to specify the direction. All other members are read-only.
The snd_pcm_plugin_status() function fills the status structure with runtime status information about the PCM channel selected by handle.
Zero on success, or a negative error code.
See the wave.c example in the appendix.
This function is the plugin-aware version of snd_pcm_channel_status(). 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.
snd_pcm_channel_status(), snd_pcm_channel_status_t, snd_pcm_open(), snd_pcm_open_preferred()