1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.fe 3 4.. _FE_READ_BER: 5 6*********** 7FE_READ_BER 8*********** 9 10Name 11==== 12 13FE_READ_BER 14 15.. attention:: This ioctl is deprecated. 16 17Synopsis 18======== 19 20.. c:macro:: FE_READ_BER 21 22``int ioctl(int fd, FE_READ_BER, uint32_t *ber)`` 23 24Arguments 25========= 26 27``fd`` 28 File descriptor returned by :c:func:`open()`. 29 30``ber`` 31 The bit error rate is stored into \*ber. 32 33Description 34=========== 35 36This ioctl call returns the bit error rate for the signal currently 37received/demodulated by the front-end. For this command, read-only 38access to the device is sufficient. 39 40Return Value 41============ 42 43On success 0 is returned. 44 45On error -1 is returned, and the ``errno`` variable is set 46appropriately. 47 48Generic error codes are described at the 49:ref:`Generic Error Codes <gen-errors>` chapter. 50