2014-08-13 05:48:16 +00:00
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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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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="up" title="FatFs" href="../00index_e.html">
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<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/utime.html">
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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_utime</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_utime</h2>
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<p>The f_utime function changes the timestamp of a file or sub-directory.</p>
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<pre>
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FRESULT f_utime (
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const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] Object name */</span>
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const FILINFO* <span class="arg">fno</span> <span class="c">/* [IN] Time and data to be set */</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>path</dt>
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<dd>Pointer to the null-terminated string that specifies an <a href="filename.html">object</a> to be changed.</dd>
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<dt>fno</dt>
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<dd>Pointer to the file information structure that has a timestamp to be set in member fdate and ftime. Do not care any other members.</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#ok">FR_NO_FILE</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#wp">FR_WRITE_PROTECTED</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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</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_utime()</tt> function changes the timestamp of a file or sub-directory</p>
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</div>
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<div class="para use">
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<h4>Example</h4>
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<pre>
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FRESULT set_timestamp (
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char *obj, <span class="c">/* Pointer to the file name */</span>
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int year,
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int month,
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int mday,
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int hour,
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int min,
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int sec
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)
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{
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FILINFO fno;
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fno.fdate = (WORD)(((year - 1980) * 512U) | month * 32U | mday);
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fno.ftime = (WORD)(hour * 2048U | min * 32U | sec / 2U);
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return f_utime(obj, &fno);
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}
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</pre>
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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>_FS_READONLY == 0</tt> and <tt>_FS_MINIMIZE == 0</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="stat.html">f_stat</a>, <a href="sfileinfo.html">FILINFO</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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