savelij13
e400c8c902
- Added f_truncate(). - Added f_utime(). - Fixed off by one error at FAT sub-type determination. - Fixed btr in f_read() can be mistruncated. - Fixed cached sector is not flushed when create and close without write.
76 lines
2.3 KiB
HTML
76 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=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="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">
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<h2>f_utime</h2>
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<p>The f_utime function changes the timestamp of a file or directory.</p>
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<pre>
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FRESULT f_utime (
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const char* <em>FileName</em>, /* Pointer to the file or directory path */
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const FILINFO* <em>TimeDate</em> /* Time and data to be set */
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);
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</pre>
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</div>
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<div class="para">
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<h4>Parameter</h4>
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<dl class="par">
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<dt>FileName</dt>
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<dd>Pointer to the null-terminated string that specifies a <a href="filename.html">file or directory</a> to be changed.</dd>
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<dt>TimeDate</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">
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<h4>Return Values</h4>
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<dl class="ret">
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<dt>FR_OK (0)</dt>
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<dd>The function succeeded.</dd>
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<dt>FR_NO_FILE</dt>
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<dd>Could not find the file.</dd>
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<dt>FR_NO_PATH</dt>
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<dd>Could not find the path.</dd>
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<dt>FR_INVALID_NAME</dt>
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<dd>The file name is invalid.</dd>
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<dt>FR_INVALID_DRIVE</dt>
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<dd>The drive number is invalid.</dd>
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<dt>FR_NOT_READY</dt>
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<dd>The disk drive cannot work due to no medium in the drive or any other reason.</dd>
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<dt>FR_WRITE_PROTECTED</dt>
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<dd>The medium is write protected.</dd>
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<dt>FR_RW_ERROR</dt>
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<dd>The function failed due to a disk error or an internal error.</dd>
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<dt>FR_NOT_ENABLED</dt>
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<dd>The logical drive has no work area.</dd>
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<dt>FR_NO_FILESYSTEM</dt>
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<dd>There is no valid FAT partition on the disk.</dd>
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</dl>
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</div>
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<div class="para">
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<h4>Description</h4>
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<p>The f_utime function changes the timestamp of a file or directory. This function is not supported in read-only configuration and minimization level of >=1.</p>
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</div>
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<div class="para">
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<h4>References</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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