 <tr><td class="paramdir">[in]</td><td class="paramname">irqn</td><td>interrupt ID number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>registered interrupt handler function address.</dd></dl>
<p>This function retrieves address of the interrupt handler callback function corresponding to the specified interrupt ID number.</p>
<p>For Arm GIC the default implementation looks like the following example:</p>
<div class="fragment"><div class="line"><a class="code" href="irq__c