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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<link rel="up" title="FatFs" href="../00index_e.html">
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/utime.html">
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
<title>FatFs - f_utime</title>
</head>
<body>
<div class="para">
<h2>f_utime</h2>
<p>The f_utime function changes the timestamp of a file or directory.</p>
<pre>
FRESULT f_utime (
const TCHAR* <em>FileName</em>, <span class="k">/* Pointer to the file or directory path */</span>
const FILINFO* <em>TimeDate</em> <span class="k">/* Time and data to be set */</span>
);
</pre>
</div>
<div class="para">
<h4>Parameters</h4>
<dl class="par">
<dt>FileName</dt>
<dd>Pointer to the null-terminated string that specifies a <a href="filename.html">file or directory</a> to be changed.</dd>
<dt>TimeDate</dt>
<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>
</dl>
</div>
<div class="para">
<h4>Return Values</h4>
<dl class="ret">
<dt>FR_OK (0)</dt>
<dd>The function succeeded.</dd>
<dt>FR_NO_FILE</dt>
<dd>Could not find the file.</dd>
<dt>FR_NO_PATH</dt>
<dd>Could not find the path.</dd>
<dt>FR_INVALID_NAME</dt>
<dd>The file 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_WRITE_PROTECTED</dt>
<dd>The medium is write protected.</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>
</div>
<div class="para">
<h4>Description</h4>
<p>The f_utime function changes the timestamp of a file or directory</p>
</div>
<div class="para">
<h4>Example</h4>
<pre>
FRESULT set_timestamp (
char *obj, <span class="k">/* Pointer to the file name */</span>
int year,
int month,
int mday,
int hour,
int min,
int sec
)
{
FILINFO fno;
fno.fdate = (WORD)(((year - 1980) * 512U) | month * 32U | mday);
fno.ftime = (WORD)(hour * 2048U | min * 32U | sec / 2U);
return f_utime(obj, &fno);
}
</pre>
</div>
<div class="para">
<h4>QuickInfo</h4>
<p>Available when <tt>_FS_READONLY == 0</tt> and <tt>_FS_MINIMIZE == 0</tt>.</p>
</div>
<div class="para">
<h4>See Also</h4>
<p><tt><a href="stat.html">f_stat</a>, <a href="sfileinfo.html">FILINFO</a></tt></p>
</div>
<p class="foot"><a href="../00index_e.html">Return</a></p>
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