diff --git a/Documentation/NuttxPortingGuide.html b/Documentation/NuttxPortingGuide.html
index c2ed3b4d1bc..0eb4e6f449a 100644
--- a/Documentation/NuttxPortingGuide.html
+++ b/Documentation/NuttxPortingGuide.html
@@ -12,7 +12,7 @@
       <h1><big><font color="#3c34ec">
         <i>NuttX RTOS Porting Guide</i>
       </font></big></h1>
-      <p>Last Updated: January 9, 2011</p>
+      <p>Last Updated: January 16, 2011</p>
     </td>
   </tr>
 </table>
@@ -3612,6 +3612,15 @@ build
   <li>
     <code>CONFIG_USBHOST_NPREALLOC</code>: Number of pre-allocated class instances
   </li>
+  <li>
+    <code>CONFIG_USBHOST_BULK_DISABLE</code>: On some architectures, selecting this setting will reduce driver size by disabling bulk endpoint support
+  </li>
+  <li>
+    <code>CONFIG_USBHOST_INT_DISABLE</code>: On some architectures, selecting this setting will reduce driver size by disabling interrupt endpoint support
+  </li>
+  <li>
+    <code>CONFIG_USBHOST_ISOC_DISABLE</code>: On some architectures, selecting this setting will reduce driver size by disabling isochronous endpoint support
+  </li>
 </ul>
 
 <h2>Graphics related configuration settings</h3>