tring</li>
  <li><a href="doc/printf.html">f_printf</a> - Write a formatted string</li>
  <li><a href="doc/tell.html">f_tell</a> - Get current read/write pointer</li>
  <li><a href="doc/eof.html">f_eof</a> - Test for end-of-file</li>
  <li><a href="doc/size.html">f_size</a> - Get size</li>
  <li><a href="doc/error.html">f_error</a> - Test for an error</li>
 </ul>
 </li>
 <li>Directory Access
 <ul>
  <li><a href="doc/opendir.html">f_opendir</a> - Open a directory</li>
  <li><a href="doc/closedir.h