Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/Documentation/media/uapi/v4l/func-close.rst b/Documentation/media/uapi/v4l/func-close.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _func-close:
+
+************
+V4L2 close()
+************
+
+Name
+====
+
+v4l2-close - Close a V4L2 device
+
+
+Synopsis
+========
+
+.. code-block:: c
+
+    #include <unistd.h>
+
+
+.. c:function:: int close( int fd )
+    :name: v4l2-close
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by :ref:`open() <func-open>`.
+
+
+Description
+===========
+
+Closes the device. Any I/O in progress is terminated and resources
+associated with the file descriptor are freed. However data format
+parameters, current input or output, control values or other properties
+remain unchanged.
+
+
+Return Value
+============
+
+The function returns 0 on success, -1 on failure and the ``errno`` is
+set appropriately. Possible error codes:
+
+EBADF
+    ``fd`` is not a valid open file descriptor.