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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
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<link rel="up" title="FatFs" href="../00index_j.html">
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
<title>FatFs - f_getfree</title>
</head>
<body>
<div class="para">
<h2>f_getfree</h2>
<p>_hCu̖gpNX^܂B</p>
<pre>
FRESULT f_getfree (
const XCHAR* <em>Path</em>, /* ΏۃhCũ[gEfBNg */
DWORD* <em>Clusters</em>, /* NX^i[ϐւ̃|C^ */
FATFS** <em>FileSystemObject</em> /* t@CEVXeEIuWFNgw|C^ւ̃|C^ */
);
</pre>
</div>
<div class="para">
<h4></h4>
<dl class="par">
<dt>Path</dt>
<dd>Ώۂ̘_hCũ[gfBNg<a href="filename.html">pX</a><tt>'\0'</tt>ŏI镶ւ̃|C^w肵܂B</dd>
<dt>Clusters</dt>
<dd>NX^i[<tt>DWORD</tt>ϐւ̃|C^w肵܂B</dd>
<dt>FileSystemObject</dt>
<dd>ΏۃhCũt@CEVXeEIuWFNgw|C^Ԃ܂B</dd>
</dl>
</div>
<div class="para">
<h4>߂l</h4>
<dl class="ret">
<dt>FR_OK (0)</dt>
<dd>IB<tt>*Clusters</tt>ɋNX^Ԃ܂B</dd>
<dt>FR_INVALID_DRIVE</dt>
<dd>hCuԍsB</dd>
<dt>FR_NOT_READY</dt>
<dd>fBAZbgĂȂȂǁAhCus\ԁB</dd>
<dt>FR_DISK_ERR</dt>
<dd>fBXNEG[ɂ鎸sB</dd>
<dt>FR_INT_ERR</dt>
<dd>sFAT\܂͓G[ɂ鎸sB</dd>
<dt>FR_NOT_ENABLED</dt>
<dd>̘_hCuɃ[NEGA^ĂȂB</dd>
<dt>FR_NO_FILESYSTEM</dt>
<dd>fBXNɗLFATp[e[VȂB</dd>
</dl>
</div>
<div class="para">
<h4></h4>
<p>_hCűNX^擾܂BԂꂽt@CEVXeEIuWFNg<tt>csize</tt>oNX^̃ZN^Ă̂ŁAɎۂ̋TCYvZł܂BFAT32{[ɂẮAFSINFȌԂɂĂ͕smȒlԂAɎԂ肷\܂B</p>
</div>
<div class="para">
<h4>Ή</h4>
<p><tt>_FS_READONLY == 0</tt>ŁA<tt>_FS_MINIMIZE == 0</tt>̂Ƃgp\łB</p>
</div>
<div class="para">
<h4>gp</h4>
<pre>
FATFS *fs;
DWORD fre_clust, fre_sect, tot_sect;
/* Get drive information and free clusters */
res = f_getfree("/", &fre_clust, &fs);
if (res) die(res);
/* Get total sectors and free sectors */
tot_sect = (fs->max_clust - 2) * fs->csize;
fre_sect = fre_clust * fs->csize;
/* Print free space in unit of KB (assuming 512B/sector) */
printf("%lu KB total drive space.\n"
"%lu KB available.\n",
fre_sect / 2, tot_sect / 2);
</pre>
</div>
<div class="para">
<h4>Q</h4>
<tt><a href="sfatfs.html">FATFS</a></tt>
</div>
<p class="foot"><a href="../00index_j.html">߂</a></p>
</body>
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