ifneq (,$(filter native,$(BOARD))) CAN_DRIVER ?= PERIPH_CAN endif # define the CAN driver you want to use here CAN_DRIVER ?= MCP2515 ifeq ($(CAN_DRIVER), PERIPH_CAN) FEATURES_REQUIRED += periph_can else ifeq ($(CAN_DRIVER), MCP2515) USEMODULE += mcp2515 else ifeq ($(CAN_DRIVER), CAN_ALT) # other can modules can be defined here endif