QNX Developer Support
Get general information about a PCM device from a control handle
#include <sys/asoundlib.h> int snd_ctl_pcm_info( snd_ctl_t *handle, int dev, snd_pcm_info_t *info );
- The handle for the control connection to the card. This must be a handle created by snd_ctl_open().
- The PCM device.
- A pointer to a snd_pcm_info_t structure in which snd_ctl_pcm_info() stores the information.
The snd_ctl_pcm_info() function fills the info structure with information about the capabilities of the PCM device dev on the sound card selected by handle.
Zero on success, or a negative error code.
- Invalid handle.