FE_READ_BER Synopsis

int ioctl(int fd, int request = FE_READ_BER, uint32_t *ber) Arguments

int fd File descriptor returned by a previous call to open().
int request Equals FE_READ_BER for this command.
uint32_t *ber The bit error rate is stored into *ber. Description

This ioctl call returns the bit error rate for the signal currently received/demodulated by the front-end. For this command, read-only access to the device is sufficient. 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.