From 236bd201ca0a31c8768d0236cc13bddf6cf58e9d Mon Sep 17 00:00:00 2001
From: Hauke Petersen <hauke.petersen@fu-berlin.de>
Date: Tue, 15 Mar 2016 14:24:48 +0100
Subject: [PATCH] sys/arduino: adapted to changed UART cb type

---
 sys/arduino/serialport.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/arduino/serialport.cpp b/sys/arduino/serialport.cpp
index c9512be576..63ac0af947 100644
--- a/sys/arduino/serialport.cpp
+++ b/sys/arduino/serialport.cpp
@@ -27,10 +27,10 @@ extern "C" {
 
 #include "serialport.hpp"
 
-void rx_cb(void *arg, char c)
+void rx_cb(void *arg, uint8_t c)
 {
     ringbuffer_t *buf = (ringbuffer_t *)arg;
-    ringbuffer_add_one(buf, c);
+    ringbuffer_add_one(buf, (char)c);
 }
 
 SerialPort::SerialPort(uart_t dev)