Doc/comments update

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@380 42af7a65-404d-4744-a932-0658087f49c3

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 6, 2007</p>
+      <p>Last Updated: November 8, 2007</p>
     </td>
   </tr>
 </table>
@@ -355,11 +355,11 @@ is available that be used to build a NuttX-compatible arm-elf toolchain.</blockq
 </pre>
 <p><b>DM320 (ARM9)</b>
   This build for the ARM9 target includes a signficant subset of OS
-  features, ethernet driver and full TCP/IP stack (via uIP).
+  features, ethernet driver and full TCP/IP stack (via uIP). (11/8/07)
 </p>
 <pre>
    text    data     bss     dec     hex filename
-  51368     296    6072   57736    e188 nuttx
+  49472     296    3972   53740    d1ec nuttx
 </pre>
 <p><b>87C52</b>
   A reduced functionality OS test for the 8052 target requires only

net/uip/uip-tcpcallback.c

@@ -75,6 +75,10 @@
 
 uint8 uip_tcpcallback(struct uip_driver_s *dev, struct uip_conn *conn, uint8 flags)
 {
+  /* Preserve the UIP_ACKDATA & UIP_NEWDATA in the response.  These are
+   * needed by uIP to handle ACKing and buffer state.
+   */
+
   uint8 ret = flags & (UIP_ACKDATA|UIP_NEWDATA);
 
   vdbg("flags: %02x\n", flags);
@@ -83,7 +87,11 @@ uint8 uip_tcpcallback(struct uip_driver_s *dev, struct uip_conn *conn, uint8 fla
 
   if (conn->data_event)
     {
-      /* Perform the callback */
+      /* Perform the callback.  Callback function may return on of:
+       *   UIP_CLOSE - Gracefully close the current connection
+       *   UIP_ABORT - Abort (reset) the current connection on an error that
+       *               prevents UIP_CLOSE from working.
+       */
 
       ret |= conn->data_event(dev, conn, flags);
     }