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66 lines
2.0 KiB
HTML
66 lines
2.0 KiB
HTML
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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="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - f_mount</title>
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</head>
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<body>
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<div class="para">
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<h2>f_mount</h2>
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<p>The f_mount fucntion registers/unregisters a work area to the FatFs module.</p>
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<pre>
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FRESULT f_mount (
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BYTE <em>Drive</em>, /* Logical drive number */
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FATFS* <em>FileSystemObject</em> /* Pointer to the work area */
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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>Parameters</h4>
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<dl class="par">
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<dt>Drive</dt>
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<dd>Logical drive number (0-9) to register/unregister the work area.</dd>
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<dt>FileSystemObject</dt>
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<dd>Pointer to the work area (file system object) to be registered.</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_INVALID_DRIVE</dt>
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<dd>The drive number is invalid.</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_mount function registers/unregisters a work area to the FatFs module. The work area must be given to the each volume with this function prior to use any other file function. To unregister a work area, specify a NULL to the <em>FileSystemObject</em>, and then the work area can be discarded.</p>
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<p>This function only initializes the given work area and registers its address to the internal table, any access to the disk I/O layer does not occure. The volume mount process is performed on first file access after f_mount function or media change.</p>
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</div>
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<div class="para">
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<h4>QuickInfo</h4>
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<p>Always available.</p>
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</div>
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<div class="para">
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<h4>See Also</h4>
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<p><tt><a href="sfatfs.html">FATFS</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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