fatfs/doc/en/chdir.html

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   9 <title>FatFs - f_chdir</title>
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  13
  14 <div class="para func">
  15 <h2>f_chdir</h2>
  16 <p>The f_chdir function changes the current directory of a drive.</p>
  17 <pre>
  18 FRESULT f_chdir (
  19   const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] Path name */</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>Pointer to the null-terminated string that specifies a <a href="filename.html">directory</a> to go.</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#de">FR_DISK_ERR</a>,
  38 <a href="rc.html#ie">FR_INT_ERR</a>,
  39 <a href="rc.html#nr">FR_NOT_READY</a>,
  40 <a href="rc.html#np">FR_NO_PATH</a>,
  41 <a href="rc.html#in">FR_INVALID_NAME</a>,
  42 <a href="rc.html#id">FR_INVALID_DRIVE</a>,
  43 <a href="rc.html#ne">FR_NOT_ENABLED</a>,
  44 <a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
  45 <a href="rc.html#tm">FR_TIMEOUT</a>,
  46 <a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
  47 </p>
  48 </div>
  49
  50
  51 <div class="para desc">
  52 <h4>Description</h4>
  53 <p>The <tt>f_chdir()</tt> function changes the current directory of the logical drive. The current directory of a drive is initialized to the root directory when the drive is auto-mounted. Note that the current directory is retained in the each file system object so that it also affects other tasks that using the volume.</p>
  54 </div>
  55
  56
  57 <div class="para comp">
  58 <h4>QuickInfo</h4>
  59 <p>Available when <tt>_FS_RPATH >= 1</tt>.</p>
  60 </div>
  61
  62
  63 <div class="para use">
  64 <h4>Example</h4>
  65 <pre>
  66     <span class="c">/* Change current direcoty of the current drive (dir1 under root dir) */</span>
  67     f_chdir("/dir1");
  68
  69     <span class="c">/* Change current direcoty of drive 2 (parent dir) */</span>
  70     f_chdir("2:..");
  71 </pre>
  72 </div>
  73
  74 <div class="para ref">
  75 <h4>See Also</h4>
  76 <p><tt><a href="chdrive.html">f_chdrive</a>, <a href="getcwd.html">f_getcwd</a></tt></p>
  77 </div>
  78
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