6.3.2.15. AUDIO_GET_CAPABILITIES

6.3.2.15.1. Name

AUDIO_GET_CAPABILITIES

注意

This ioctl is deprecated

6.3.2.15.2. Synopsis

int ioctl(int fd, AUDIO_GET_CAPABILITIES, unsigned int *cap)

6.3.2.15.3. Arguments

int fd	File descriptor returned by a previous call to open().
unsigned int *cap	Returns a bit array of supported sound formats.

6.3.2.15.4. Description

This ioctl call asks the Audio Device to tell us about the decoding capabilities of the audio hardware.

6.3.2.15.5. Return Value

On success 0 is returned, on error -1 and the errno variable is set appropriately. The generic error codes are described at the Generic Error Codes chapter.