extern class FunctionSelect `{ bcm2835FunctionSelect `}
	# Input function
	new inpt `{ return BCM2835_GPIO_FSEL_INPT; `}

	# Output function
	new outp `{ return BCM2835_GPIO_FSEL_OUTP; `}

	new alt0 `{ return BCM2835_GPIO_FSEL_ALT0; `}
	new alt1 `{ return BCM2835_GPIO_FSEL_ALT1; `}
	new alt2 `{ return BCM2835_GPIO_FSEL_ALT2; `}
	new alt3 `{ return BCM2835_GPIO_FSEL_ALT3; `}
	new alt4 `{ return BCM2835_GPIO_FSEL_ALT4; `}
	new alt5 `{ return BCM2835_GPIO_FSEL_ALT5; `}
	new mask `{ return BCM2835_GPIO_FSEL_MASK; `}
end