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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-08 11:40:06 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-08 11:59:40 -0300
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treeb3b03707c6438ea9b99cc57e847ebf517f968ab1 /Documentation/media/uapi/v4l/func-close.rst
parenta97369b5e21ea9b8b5fef7c0f4f48bbe60c07ca3 (diff)
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doc_rst: rename the media Sphinx suff to Documentation/media
The name of the subsystem is "media", and not "linux_tv". Also, as we plan to add other stuff there in the future, let's rename also the media uAPI book to media_uapi, to make it clearer. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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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>
+
+
+.. cpp:function:: int close( int fd )
+
+
+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.
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