rotek
/
module_universal_io


			
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<link rel="up" title="FatFs" href="../00index_e.html">
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/chdir.html">
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<title>FatFs - f_chdir</title>
</head>

<body>

<div class="para func">
<h2>f_chdir</h2>
<p>The f_chdir function changes the current directory of a drive.</p>
<pre>
FRESULT f_chdir (
  const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] Path name */</span>
);
</pre>
</div>

<div class="para arg">
<h4>Parameters</h4>
<dl class="par">
<dt>path</dt>
<dd>Pointer to the null-terminated string that specifies a <a href="filename.html">directory</a> to go.</dd>
</dl>
</div>


<div class="para ret">
<h4>Return Values</h4>
<p>
<a href="rc.html#ok">FR_OK</a>,
<a href="rc.html#de">FR_DISK_ERR</a>,
<a href="rc.html#ie">FR_INT_ERR</a>,
<a href="rc.html#nr">FR_NOT_READY</a>,
<a href="rc.html#np">FR_NO_PATH</a>,
<a href="rc.html#in">FR_INVALID_NAME</a>,
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
<a href="rc.html#tm">FR_TIMEOUT</a>,
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
</p>
</div>


<div class="para desc">
<h4>Description</h4>
<p>The <tt>f_chdir</tt> function changes the current directory of the logical drive. The current directory of a drive is initialized to the root directory when the drive is auto-mounted. Note that the current directory is retained in the each file system object so that it also affects other tasks that using the volume.</p>
</div>


<div class="para comp">
<h4>QuickInfo</h4>
<p>Available when <tt>_FS_RPATH >= 1</tt>.</p>
</div>


<div class="para use">
<h4>Example</h4>
<pre>
    <span class="c">/* Change current direcoty of the current drive (dir1 under root dir) */</span>
    f_chdir("/dir1");

    <span class="c">/* Change current direcoty of drive 2 (parent dir) */</span>
    f_chdir("2:..");
</pre>
</div>

<div class="para ref">
<h4>See Also</h4>
<p><tt><a href="chdrive.html">f_chdrive</a>, <a href="getcwd.html">f_getcwd</a></tt></p>
</div>

<p class="foot"><a href="../00index_e.html">Return</a></p>
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