rules.mk (303B)
1 # CPU frequency divided by two since AVR is at 3.3 V 2 F_CPU = 8000000 3 4 # External oscillator is 16 MHz 5 F_USB = 16000000 6 7 RGB_MATRIX_CUSTOM_KB = yes # Custom keyboard effects 8 9 # Add System76 EC command interface as well as I2C and USB mux drivers 10 SRC += system76_ec.c usb_mux.c 11 I2C_DRIVER_REQUIRED = yes