diff --git a/src/energenie/drv/trace.h b/src/energenie/drv/trace.h
index 20a0ca9..abf396a 100644
--- a/src/energenie/drv/trace.h
+++ b/src/energenie/drv/trace.h
@@ -11,7 +11,7 @@
 #ifndef _TRACE_H
 #define _TRACE_H
 
-#define TRACE_POSIX
+//#define TRACE_POSIX
 
 /* POSIX IMPLEMENTATION */
 /* Printf is not available on some platforms, or not very efficient.
diff --git a/src/energenie/radio2.py b/src/energenie/radio2.py
index 70dee9b..b6e9716 100644
--- a/src/energenie/radio2.py
+++ b/src/energenie/radio2.py
@@ -16,8 +16,8 @@
 #TODO: Should really add parameter validation here, so that C code doesn't have to.
 #although it will be faster in C (C could be made optional, like an assert?)
 
-#LIBNAME = "drv/radio_rpi.so"
-LIBNAME = "drv/radio_mac.so" # testing
+LIBNAME = "drv/radio_rpi.so"
+#LIBNAME = "drv/radio_mac.so" # testing
 
 import time
 import ctypes
@@ -205,7 +205,7 @@
 
 
 def spi_trace(msg):
-    print(str(msg))
+    pass #print(str(msg))
 
 
 def spi_reset():