title: Linux device file is missing
body: <p>I find the driver specific stuff in <code>/sys/class/graphic/XM_403</code>
  But in <code>/dev/</code> is no XM_403 file.</p>
  
  <p>Here is the pertinent code. </p>
  
  <pre><code>    graphic_class = class_create(THIS_MODULE,"graphic");
      device_create(graphic_class,NULL,MKDEV(MAJOR_NR,minor),NULL,"XM_403");
  </code></pre>