# LUFA library compile-time options and predefined tokens
 LUFA_OPTS  = -D USB_HOST_ONLY
-LUFA_OPTS += -D NO_STREAM_CALLBACKS
 LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
 
 
 SRC = $(TARGET).c                                                 \
          ConfigDescriptor.c                                          \
          $(LUFA_SRC_USB)                                             \
-         $(LUFA_SRC_SERIAL)                                          \
-         $(LUFA_SRC_SERIALSTREAM)
+         $(LUFA_SRC_SERIAL)
 
 
 # List C++ source files here. (C dependencies are automatically generated.)