1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun.. c:namespace:: V4L 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun.. _func-close: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun************ 7*4882a593SmuzhiyunV4L2 close() 8*4882a593Smuzhiyun************ 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunName 11*4882a593Smuzhiyun==== 12*4882a593Smuzhiyun 13*4882a593Smuzhiyunv4l2-close - Close a V4L2 device 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunSynopsis 16*4882a593Smuzhiyun======== 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun.. code-block:: c 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #include <unistd.h> 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun.. c:function:: int close( int fd ) 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunArguments 25*4882a593Smuzhiyun========= 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun``fd`` 28*4882a593Smuzhiyun File descriptor returned by :c:func:`open()`. 29*4882a593Smuzhiyun 30*4882a593SmuzhiyunDescription 31*4882a593Smuzhiyun=========== 32*4882a593Smuzhiyun 33*4882a593SmuzhiyunCloses the device. Any I/O in progress is terminated and resources 34*4882a593Smuzhiyunassociated with the file descriptor are freed. However data format 35*4882a593Smuzhiyunparameters, current input or output, control values or other properties 36*4882a593Smuzhiyunremain unchanged. 37*4882a593Smuzhiyun 38*4882a593SmuzhiyunReturn Value 39*4882a593Smuzhiyun============ 40*4882a593Smuzhiyun 41*4882a593SmuzhiyunThe function returns 0 on success, -1 on failure and the ``errno`` is 42*4882a593Smuzhiyunset appropriately. Possible error codes: 43*4882a593Smuzhiyun 44*4882a593SmuzhiyunEBADF 45*4882a593Smuzhiyun ``fd`` is not a valid open file descriptor. 46