Get general information about a PCM device
#include <sys/asoundlib.h> int snd_pcm_info( snd_pcm_t *handle, snd_pcm_info_t *info );
- 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 snd_pcm_info_t structure in which snd_ctl_pcm_info() stores the information.
The snd_pcm_info() function fills the info structure with information about the capabilities of the PCM device selected by handle.
Zero on success, or a negative error code.
- Invalid handle.