75 lines
2.3 KiB
HTML
75 lines
2.3 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - f_opendir</title>
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</head>
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<body>
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<div class="para func">
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<h2>f_opendir</h2>
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<p>The f_opendir function opens a directory.</p>
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<pre>
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FRESULT f_opendir (
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DIR* <span class="arg">dp</span>, <span class="c">/* [OUT] Pointer to the directory object structure */</span>
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const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] Directory name */</span>
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);
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</pre>
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</div>
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<div class="para arg">
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<h4>Parameters</h4>
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<dl class="par">
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<dt>dp</dt>
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<dd>Pointer to the blank directory object to create a new one. If a null pointer is given, the function fails with <tt>FR_INVALID_OBJECT</tt>.</dd>
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<dt>path</dt>
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<dd>Pointer to the null-terminated string that specifies the <a href="filename.html">directory name</a> to be opened. If a null pointer is given, the function fails with <tt>FR_INVALID_DRIVE</tt>.</dd>
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</dl>
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</div>
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<div class="para ret">
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<h4>Return Values</h4>
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<p>
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<a href="rc.html#ok">FR_OK</a>,
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<a href="rc.html#de">FR_DISK_ERR</a>,
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<a href="rc.html#ie">FR_INT_ERR</a>,
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<a href="rc.html#nr">FR_NOT_READY</a>,
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<a href="rc.html#np">FR_NO_PATH</a>,
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<a href="rc.html#in">FR_INVALID_NAME</a>,
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<a href="rc.html#io">FR_INVALID_OBJECT</a>,
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<a href="rc.html#id">FR_INVALID_DRIVE</a>,
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<a href="rc.html#ne">FR_NOT_ENABLED</a>,
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<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
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<a href="rc.html#tm">FR_TIMEOUT</a>,
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<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>,
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<a href="rc.html#tf">FR_TOO_MANY_OPEN_FILES</a>
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</p>
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</div>
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<div class="para desc">
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<h4>Description</h4>
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<p>The <tt>f_opendir</tt> function opens an exsisting directory and creates a directory object for subsequent <tt>f_readdir</tt> function.</p>
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</div>
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<div class="para comp">
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<h4>QuickInfo</h4>
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<p>Available when <tt><a href="config.html#fs_minimize">FF_FS_MINIMIZE</a> <= 1</tt>.</p>
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</div>
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<div class="para ref">
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<h4>See Also</h4>
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<p><tt><a href="readdir.html">f_readdir</a>, <a href="closedir.html">f_closedir</a>, <a href="sdir.html">DIR</a></tt></p>
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</div>
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<p class="foot"><a href="../00index_e.html">Return</a></p>
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</body>
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</html>
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