.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later .. c:namespace:: MC.request .. _request-func-close: *************** request close() *************** Name ==== request-close - Close a request file descriptor Synopsis ======== .. code-block:: c #include .. c:function:: int close( int fd ) 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 ` for more information. Return Value ============ :c: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.