.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_EVENT:
************
FE_GET_EVENT
************
Name
====
FE_GET_EVENT
.. attention:: This ioctl is deprecated.
Synopsis
========
.. c:macro:: FE_GET_EVENT
``int ioctl(int fd, FE_GET_EVENT, struct dvb_frontend_event *ev)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open()`.
``ev``
Points to the location where the event, if any, is to be stored.
Description
===========
This ioctl call returns a frontend event if available. If an event is
not available, the behavior depends on whether the device is in blocking
or non-blocking mode. In the latter case, the call fails immediately
with errno set to ``EWOULDBLOCK``. In the former case, the call blocks until
an event becomes available.
Return Value
============
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set
appropriately.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EWOULDBLOCK``
- There is no event pending, and the device is in non-blocking mode.
- .. row 2
- ``EOVERFLOW``
- Overflow in event queue - one or more events were lost.
Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
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