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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<link rel="up" title="Petit FatFs" href="../00index_p.html">
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<title>Petit FatFs - pf_opendir</title>
</head>
<body>
<div class="para">
<h2>pf_opendir</h2>
<p>The pf_opendir function opens a directory.</p>
<pre>
FRESULT pf_opendir (
DIR* <span class="arg">dp</span>, <span class="c">/* [OUT] Pointer to the blank directory object structure */</span>
const char* <span class="arg">path</span> <span class="c">/* [IN] Pointer to the directory name */</span>
);
</pre>
</div>
<div class="para">
<h4>Parameters</h4>
<dl class="par">
<dt>dp</dt>
<dd>Pointer to the blank directory object to be created.</dd>
<dt>path</dt>
<dd>Pinter to the null-terminated string that specifies the <a href="filename.html">directory name</a> to be opened.</dd>
</dl>
</div>
<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_FILE</dt>
<dd>Could not find the path.</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 a hard error in the disk function, a wrong FAT structure or an internal error.</dd>
<dt>FR_NOT_ENABLED</dt>
<dd>The volume has no work area.</dd>
</dl>
</div>
<div class="para">
<h4>Description</h4>
<p>The <tt>pf_opendir()</tt> 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>
</div>
<div class="para">
<h4>QuickInfo</h4>
<p>Available when <tt>_USE_DIR == 1</tt>.</p>
</div>
<div class="para">
<h4>References</h4>
<p><tt><a href="readdir.html">f_readdir</a>, <a href="sdir.html">DIR</a></tt></p>
</div>
<p class="foot"><a href="../00index_p.html">Return</a></p>
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