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- .. 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 <unistd.h>
- .. 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 <media-request-life-time>` 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.
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