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-rw-r--r--quantum/mcu_selection.mk2
1 files changed, 2 insertions, 0 deletions
diff --git a/quantum/mcu_selection.mk b/quantum/mcu_selection.mk
index f15a4f58c0..ef7e8ae75d 100644
--- a/quantum/mcu_selection.mk
+++ b/quantum/mcu_selection.mk
@@ -213,6 +213,8 @@ ifneq ($(findstring STM32F103, $(MCU)),)
endif
ifneq (,$(filter $(MCU),atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb1286))
+ PROTOCOL = LUFA
+
# Processor frequency.
# This will define a symbol, F_CPU, in all source code files equal to the
# processor frequency in Hz. You can then use this symbol in your source code to