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.. -*- coding: utf-8; mode: rst -*-
.. _FE_READ_BER:
***********
FE_READ_BER
***********
Name
====
FE_READ_BER
Synopsis
========
.. cpp:function:: int ioctl(int fd, int request = FE_READ_BER, uint32_t *ber)
Arguments
=========
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- int request
- Equals :ref:`FE_READ_BER` for this command.
- .. row 3
- 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
:ref:`Generic Error Codes <gen-errors>` chapter.
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