.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_BER:
***********
FE_READ_BER
***********
Name
====
FE_READ_BER
.. attention:: This ioctl is deprecated.
Synopsis
========
.. c:macro:: FE_READ_BER
``int ioctl(int fd, FE_READ_BER, uint32_t *ber)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open()`.
``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 is returned, and the ``errno`` variable is set
appropriately.
Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
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