diff --git a/ChangeLog b/ChangeLog
index 6790a04c30a..315a98d48f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1323,6 +1323,9 @@
 	* configs/avr32dev1/ostest - The AVR32 port now successfully passes the
 	  examples/ostest.  We have a good AVR32 port!
 	* configs/avr32dev1/nsh - Added a configuration to support the NuttShell
-	  (NSH). Testing of this configuration is just beginning.
+	  (NSH). As of this writing, here is a problem receiving serial data (this
+	  is, very likely, my hardware setup).
+	* lib/lib_open.c - Fix an error in fdopen when a valid file desciptor does
+	  not refer to an open file.
 
 
diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 56817e3ce38..d3fff7c9bb6 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: November 4, 2010</p>
+      <p>Last Updated: November 5, 2010</p>
     </td>
   </tr>
 </table>
@@ -1952,7 +1952,10 @@ nuttx-5.13 2010-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
 	* configs/avr32dev1/ostest - The AVR32 port now successfully passes the
 	  examples/ostest.  We have a good AVR32 port!
 	* configs/avr32dev1/nsh - Added a configuration to support the NuttShell
-	  (NSH). Testing of this configuration is just beginning.
+	  (NSH). As of this writing, here is a problem receiving serial data (this
+	  is, very likely, my hardware setup).
+	* lib/lib_open.c - Fix an error in fdopen when a valid file desciptor does
+	  not refer to an open file.
 
 pascal-2.1 2010-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
 
diff --git a/arch/avr/src/at32uc3/at32uc3_serial.c b/arch/avr/src/at32uc3/at32uc3_serial.c
index 7ed9d4b9512..e0c2bae48b8 100644
--- a/arch/avr/src/at32uc3/at32uc3_serial.c
+++ b/arch/avr/src/at32uc3/at32uc3_serial.c
@@ -336,7 +336,7 @@ static inline void up_disableusartint(struct up_dev_s *priv, uint32_t *imr)
 {
   if (imr)
     {
-      *imr = up_serialin(priv, AVR32_USART_IDR_OFFSET);
+      *imr = up_serialin(priv, AVR32_USART_IMR_OFFSET);
     }
 
   /* Disable all interrupts */
@@ -594,7 +594,7 @@ static int up_receive(struct uart_dev_s *dev, uint32_t *status)
 static void up_rxint(struct uart_dev_s *dev, bool enable)
 {
   struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
- 
+
   if (enable)
     {
       /* Receive an interrupt when their is anything in the Rx data register (or an Rx
diff --git a/arch/avr/src/common/up_initialize.c b/arch/avr/src/common/up_initialize.c
index fde474ec619..abbff8532d4 100644
--- a/arch/avr/src/common/up_initialize.c
+++ b/arch/avr/src/common/up_initialize.c
@@ -51,6 +51,19 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+/* Determine which (if any) console driver to use.  This will probably cause
+ * up_serialinit to be incorrectly called if there is no USART configured to
+ * be an RS-232 device (see as an example arch/avr/src/at32uc23/at32uc3_config.h)
+ * This will probably have to be revisited someday.
+ */
+
+#if CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
+#  undef CONFIG_USE_SERIALDRIVER
+#  undef CONFIG_USE_EARLYSERIALINIT
+#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
+#  define CONFIG_USE_SERIALDRIVER 1
+#  define CONFIG_USE_EARLYSERIALINIT 1
+#endif
 
 /****************************************************************************
  * Private Types