Get information about a sound card's hardware
Synopsis:
#include <sys/asoundlib.h>
int snd_ctl_hw_info( snd_ctl_t *handle,
struct snd_ctl_hw_info *info );
Arguments:
- handle
- The handle for the control connection to the card.
This must be a handle created by
snd_ctl_open().
- info
- A pointer to a
snd_ctl_hw_info_t
structure in which snd_ctl_hw_info() stores the information.
Library:
libasound.so
Use the -l asound option with
qcc
to link against this library.
Description:
The snd_ctl_hw_info() function
fills the info structure with information about the
sound card hardware selected by handle.
Returns:
Zero on success, or a negative value if an error occurs.
Errors:
- -EBADF
- Invalid file descriptor. Your handle may be corrupt.
- -EINVAL
- Invalid handle argument.
Classification:
QNX Neutrino
Safety: |
|
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |