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| <title>FatFs - f_chdir</title> | |
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| <div class="para"> | |
| <h2>f_chdir</h2> | |
| <p>The f_chdir function changes the current directory of a drive.</p> | |
| <pre> | |
| FRESULT f_chdir ( | |
| const TCHAR* <em>Path</em> <span class="c">/* Pointer to the path name */</span> | |
| ); | |
| </pre> | |
| </div> | |
| <div class="para"> | |
| <h4>Parameters</h4> | |
| <dl class="par"> | |
| <dt>Path</dt> | |
| <dd>Pointer to the null-terminated string that specifies a <a href="filename.html">directory</a> to go.</dd> | |
| </dl> | |
| </div> | |
| <div class="para"> | |
| <h4>Return Values</h4> | |
| <dl class="ret"> | |
| <dt>FR_OK (0)</dt> | |
| <dd>The function succeeded.</dd> | |
| <dt>FR_NO_PATH</dt> | |
| <dd>Could not find the path.</dd> | |
| <dt>FR_INVALID_NAME</dt> | |
| <dd>The path name is invalid.</dd> | |
| <dt>FR_INVALID_DRIVE</dt> | |
| <dd>The drive number is invalid.</dd> | |
| <dt>FR_NOT_READY</dt> | |
| <dd>The disk drive cannot work due to no medium in the drive or any other reason.</dd> | |
| <dt>FR_DISK_ERR</dt> | |
| <dd>The function failed due to an error in the disk function.</dd> | |
| <dt>FR_INT_ERR</dt> | |
| <dd>The function failed due to a wrong FAT structure or an internal error.</dd> | |
| <dt>FR_NOT_ENABLED</dt> | |
| <dd>The logical drive has no work area.</dd> | |
| <dt>FR_NO_FILESYSTEM</dt> | |
| <dd>There is no valid FAT volume on the drive.</dd> | |
| </dl> | |
| </div> | |
| <div class="para"> | |
| <h4>Description</h4> | |
| <p>The f_chdir 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 drive.</p> | |
| </div> | |
| <div class="para"> | |
| <h4>QuickInfo</h4> | |
| <p>Available when <tt>_FS_RPATH >= 1</tt>.</p> | |
| </div> | |
| <div class="para"> | |
| <h4>Example</h4> | |
| <pre> | |
| <span class="c">/* Change current direcoty of the current drive (dir1 under root dir) */</span> | |
| f_chdir("/dir1"); | |
| <span class="c">/* Change current direcoty of drive 2 (parent dir) */</span> | |
| f_chdir("2:.."); | |
| </pre> | |
| </div> | |
| <div class="para"> | |
| <h4>See Also</h4> | |
| <p><tt><a href="chdrive.html">f_chdrive</a>, <a href="getcwd.html">f_getcwd</a></tt></p> | |
| </div> | |
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