int ioctl(int fd, int request = AUDIO_SET_BYPASS_MODE, boolean mode) Arguments

int fd File descriptor returned by a previous call to open().
int request Equals AUDIO_SET_BYPASS_MODE for this command.
boolean mode Enables or disables the decoding of the current Audio stream in the DVB subsystem.
  TRUE Bypass is disabled
  FALSE Bypass is enabled Description

This ioctl call asks the Audio Device to bypass the Audio decoder and forward the stream without decoding. This mode shall be used if streams that can’t be handled by the DVB system shall be decoded. Dolby DigitalTM streams are automatically forwarded by the DVB subsystem if the hardware can handle it. 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.