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<title>FatFs - f_opendir</title>
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<div class="para">
<h2>f_opendir</h2>
<p>The f_opendir function opens a directory.</p>
<pre>
FRESULT f_opendir (
DIR* <em>DirObject</em>, <span class="c">/* Pointer to the blank directory object structure */</span>
const TCHAR* <em>DirName</em> <span class="c">/* Pointer to the directory name */</span>
);
</pre>
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<div class="para">
<h4>Parameters</h4>
<dl class="par">
<dt>DirObject</dt>
<dd>Pointer to the blank directory object to be created.</dd>
<dt>DirName</dt>
<dd>Pinter to the null-terminated string that specifies the <a href="filename.html">directory name</a> to be opened.</dd>
</dl>
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<div class="para">
<h4>Return Values</h4>
<dl class="ret">
<dt>FR_OK (0)</dt>
<dd>The function succeeded and the directory object is created. It is used for subsequent calls to read the directory entries.</dd>
<dt>FR_NO_PATH</dt>
<dd>Could not find the path.</dd>
<dt>FR_INVALID_NAME</dt>
<dd>The path name is invalid.</dd>
<dt>FR_INVALID_DRIVE</dt>
<dd>The drive number is invalid.</dd>
<dt>FR_NOT_READY</dt>
<dd>The disk drive cannot work due to no medium in the drive or any other reason.</dd>
<dt>FR_DISK_ERR</dt>
<dd>The function failed due to an error in the disk function.</dd>
<dt>FR_INT_ERR</dt>
<dd>The function failed due to a wrong FAT structure or an internal error.</dd>
<dt>FR_NOT_ENABLED</dt>
<dd>The logical drive has no work area.</dd>
<dt>FR_NO_FILESYSTEM</dt>
<dd>There is no valid FAT volume on the drive.</dd>
</dl>
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<div class="para">
<h4>Description</h4>
<p>The f_opendir function opens an exsisting directory and creates the directory object for subsequent calls. The directory object structure can be discarded at any time without any procedure.</p>
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<div class="para">
<h4>QuickInfo</h4>
<p>Available when <tt>_FS_MINIMIZE &lt;= 1</tt>.</p>
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<div class="para">
<h4>See Also</h4>
<p><tt><a href="readdir.html">f_readdir</a>, <a href="sdir.html">DIR</a></tt></p>
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