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.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _request-func-close:
***************
request close()
***************
Name
====
request-close - Close a request file descriptor
Synopsis
========
.. code-block:: c
#include <unistd.h>
.. c:function:: int close( int fd )
:name: req-close
Arguments
=========
``fd``
File descriptor returned by :ref:`MEDIA_IOC_REQUEST_ALLOC`.
Description
===========
Closes the request file descriptor. Resources associated with the request
are freed once all file descriptors associated with the request are closed
and the driver has completed the request.
See :ref:`here <media-request-life-time>` for more information.
Return Value
============
:ref:`close() <request-func-close>` returns 0 on success. On error, -1 is
returned, and ``errno`` is set appropriately. Possible error codes are:
EBADF
``fd`` is not a valid open file descriptor.
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