162306a36Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 262306a36Sopenharmony_ci.. c:namespace:: V4L 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci.. _func-close: 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci************ 762306a36Sopenharmony_ciV4L2 close() 862306a36Sopenharmony_ci************ 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciName 1162306a36Sopenharmony_ci==== 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_civ4l2-close - Close a V4L2 device 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ciSynopsis 1662306a36Sopenharmony_ci======== 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci.. code-block:: c 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci #include <unistd.h> 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci.. c:function:: int close( int fd ) 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ciArguments 2562306a36Sopenharmony_ci========= 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci``fd`` 2862306a36Sopenharmony_ci File descriptor returned by :c:func:`open()`. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciDescription 3162306a36Sopenharmony_ci=========== 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ciCloses the device. Any I/O in progress is terminated and resources 3462306a36Sopenharmony_ciassociated with the file descriptor are freed. However data format 3562306a36Sopenharmony_ciparameters, current input or output, control values or other properties 3662306a36Sopenharmony_ciremain unchanged. 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ciReturn Value 3962306a36Sopenharmony_ci============ 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ciThe function returns 0 on success, -1 on failure and the ``errno`` is 4262306a36Sopenharmony_ciset appropriately. Possible error codes: 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ciEBADF 4562306a36Sopenharmony_ci ``fd`` is not a valid open file descriptor. 46