1.. Permission is granted to copy, distribute and/or modify this 2.. document under the terms of the GNU Free Documentation License, 3.. Version 1.1 or any later version published by the Free Software 4.. Foundation, with no Invariant Sections, no Front-Cover Texts 5.. and no Back-Cover Texts. A copy of the license is included at 6.. Documentation/userspace-api/media/fdl-appendix.rst. 7.. 8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9 10.. _func-close: 11 12************ 13V4L2 close() 14************ 15 16Name 17==== 18 19v4l2-close - Close a V4L2 device 20 21 22Synopsis 23======== 24 25.. code-block:: c 26 27 #include <unistd.h> 28 29 30.. c:function:: int close( int fd ) 31 :name: v4l2-close 32 33Arguments 34========= 35 36``fd`` 37 File descriptor returned by :ref:`open() <func-open>`. 38 39 40Description 41=========== 42 43Closes the device. Any I/O in progress is terminated and resources 44associated with the file descriptor are freed. However data format 45parameters, current input or output, control values or other properties 46remain unchanged. 47 48 49Return Value 50============ 51 52The function returns 0 on success, -1 on failure and the ``errno`` is 53set appropriately. Possible error codes: 54 55EBADF 56 ``fd`` is not a valid open file descriptor. 57