atus</td><td>is a bit mask indicating pending interrupts.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>EpNum is not used in this function as the handler is attached specific to end point zero. This parameter is useful when a single handler is used for processing all end point interrupts.</dd></dl>
<p>This function is the interrupt handler for the USB End point Zero events.</p>
<dl class="params"><dt>Parameters</dt