# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
F_USB ?= $(F_CPU)
-# Interrupt driven control endpoint task
-# Not work with suart debug
-#OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
# This improves response of keyboard when wakeup
OPT_DEFS += -DSUSPEND_MODE_STANDBY