1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: V4L 3 4.. _func-close: 5 6************ 7V4L2 close() 8************ 9 10Name 11==== 12 13v4l2-close - Close a V4L2 device 14 15Synopsis 16======== 17 18.. code-block:: c 19 20 #include <unistd.h> 21 22.. c:function:: int close( int fd ) 23 24Arguments 25========= 26 27``fd`` 28 File descriptor returned by :c:func:`open()`. 29 30Description 31=========== 32 33Closes the device. Any I/O in progress is terminated and resources 34associated with the file descriptor are freed. However data format 35parameters, current input or output, control values or other properties 36remain unchanged. 37 38Return Value 39============ 40 41The function returns 0 on success, -1 on failure and the ``errno`` is 42set appropriately. Possible error codes: 43 44EBADF 45 ``fd`` is not a valid open file descriptor. 46