snd_ctl_close()
Close a control handle
Synopsis:
#include <sys/asoundlib.h>
int snd_ctl_close( snd_ctl_t *handle );
Arguments:
- handle
- The handle for the control connection to the card. This must be a handle created by snd_ctl_open().
Library:
libasound.so
Use the -l asound option with qcc to link against this library.
Description:
The snd_ctl_close() function frees all the resources allocated with the control handle and closes the connection to the control interface.
Returns:
Zero on success, or a negative value on error.
Errors:
- -EBADF
- Invalid file descriptor. Your handle may be corrupt.
- -EINTR
- The close() call was interrupted by a signal.
- -EINVAL
- Invalid handle argument.
- -EIO
- An I/O error occurred while updating the directory information.
- -ENOSPC
- A previous buffered write call has failed.
Classification:
QNX Neutrino
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |
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