/* Set the direction of a Group of Pins to Input. 
Set the direction of one or more pins of GPIO to input. */
void gpio_input(uint16_t gpios)
/* Set the direction of a Group of Pins to Input. 
Set the direction of one or more pins of GPIO to input. */
void gpio_input(uint16_t gpios)
{
	GPIO_ADIR &= ~gpios;
}