>,</font></td></tr>

</table>

<table cellspacing=0 cellpadding=0>

<tr valign=top>

<td width=125></td>

<td><font face="Times">unsigned <i>length</i>)</font></td></tr>

</table>

<p>

<table cellspacing=0 cellpadding=0>

<tr valign=top>

<td width=86></td>

<td><font face="Helvetica" size="-1"><b>DESCRIPTION </b></font><font face="Times">This function unmaps a range of memory that was mapped with <b>IOMapPhysicalIntoIOTask()</b>. You should use this to destroy a mapping when you no longer need to use it.<