| .. 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. |
