| .. 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. |