media-func-close.rst 715 字节
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.. -*- coding: utf-8; mode: rst -*-

.. _media-func-close:

*************
media close()
*************

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NAME
====
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media-close - Close a media device
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SYNOPSIS
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========

.. code-block:: c

    #include <unistd.h>


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.. cpp:function:: int close( int fd )
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ARGUMENTS
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=========

``fd``
    File descriptor returned by :ref:`open() <func-open>`.


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DESCRIPTION
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===========

Closes the media device. Resources associated with the file descriptor
are freed. The device configuration remain unchanged.


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RETURN VALUE
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============

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:ref:`close() <func-close>` returns 0 on success. On error, -1 is returned, and
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``errno`` is set appropriately. Possible error codes are:

EBADF
    ``fd`` is not a valid open file descriptor.