From 7837df6e52e3cfedad2ea2d97711685682b28d63 Mon Sep 17 00:00:00 2001
From: "R. Steve McKown" <rsmckown@gmail.com>
Date: Mon, 2 Aug 2010 14:26:48 -0600
Subject: [PATCH] TOS expects an enabled UART to have rx interrupt on by
 default.

In other words, one will receive UartStream.received() without first having to
call UartStream.enableReceiveInterrupt.
---
 tos/chips/msp430/usci/Msp430UartP.nc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tos/chips/msp430/usci/Msp430UartP.nc b/tos/chips/msp430/usci/Msp430UartP.nc
index a35dd92e..cb8073df 100644
--- a/tos/chips/msp430/usci/Msp430UartP.nc
+++ b/tos/chips/msp430/usci/Msp430UartP.nc
@@ -114,6 +114,10 @@ implementation {
 
       /* Enable the device */
       call Registers.clrCtl1(UCSWRST);
+
+      /* TOS convention is for receive interrupts on by default. */
+      call Registers.clrIfgRx();
+      call Registers.setIeRx();
     }
   }
 
-- 
2.39.2