162306a36Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 262306a36Sopenharmony_ci.. c:namespace:: DTV.fe 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci.. _FE_READ_BER: 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci*********** 762306a36Sopenharmony_ciFE_READ_BER 862306a36Sopenharmony_ci*********** 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciName 1162306a36Sopenharmony_ci==== 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciFE_READ_BER 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci.. attention:: This ioctl is deprecated. 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciSynopsis 1862306a36Sopenharmony_ci======== 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci.. c:macro:: FE_READ_BER 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci``int ioctl(int fd, FE_READ_BER, uint32_t *ber)`` 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ciArguments 2562306a36Sopenharmony_ci========= 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci``fd`` 2862306a36Sopenharmony_ci File descriptor returned by :c:func:`open()`. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci``ber`` 3162306a36Sopenharmony_ci The bit error rate is stored into \*ber. 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ciDescription 3462306a36Sopenharmony_ci=========== 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ciThis ioctl call returns the bit error rate for the signal currently 3762306a36Sopenharmony_cireceived/demodulated by the front-end. For this command, read-only 3862306a36Sopenharmony_ciaccess to the device is sufficient. 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ciReturn Value 4162306a36Sopenharmony_ci============ 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ciOn success 0 is returned. 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ciOn error -1 is returned, and the ``errno`` variable is set 4662306a36Sopenharmony_ciappropriately. 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ciGeneric error codes are described at the 4962306a36Sopenharmony_ci:ref:`Generic Error Codes <gen-errors>` chapter. 50