fatfs/doc/en/chdrive.html

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   9 <title>FatFs - f_chdrive</title>
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  13
  14 <div class="para func">
  15 <h2>f_chdrive</h2>
  16 <p>The f_chdrive function changes the current drive.</p>
  17 <pre>
  18 FRESULT f_chdrive (
  19   const TCHAR* <span class="arg">path</span>  <span class="c">/* [IN] Logical drive number */</span>
  20 );
  21 </pre>
  22 </div>
  23
  24 <div class="para arg">
  25 <h4>Parameters</h4>
  26 <dl class="par">
  27 <dt>path</dt>
  28 <dd>Specifies the <a href="filename.html">logical drive number</a> to be set as the current drive.</dd>
  29 </dl>
  30 </div>
  31
  32
  33 <div class="para ret">
  34 <h4>Return Values</h4>
  35 <p>
  36 <a href="rc.html#ok">FR_OK</a>,
  37 <a href="rc.html#id">FR_INVALID_DRIVE</a>
  38 </p>
  39 </div>
  40
  41
  42 <div class="para desc">
  43 <h4>Description</h4>
  44 <p>The <tt>f_chdrive</tt> function changes the current drive. The initial value of the current drive number is 0. Note that the current drive is retained in a static variable so that it also affects other tasks that using the file functions.</p>
  45 </div>
  46
  47 <div class="para comp">
  48 <h4>QuickInfo</h4>
  49 <p>Available when <tt>_FS_RPATH >= 1</tt> and <tt>_VOLUMES >= 2</tt>.</p>
  50 </div>
  51
  52
  53 <div class="para ref">
  54 <h4>See Also</h4>
  55 <p><tt><a href="chdir.html">f_chdir</a>, <a href="getcwd.html">f_getcwd</a></tt></p>
  56 </div>
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