/* Configures and registers the External Interrupt callback function with the driver.  */
static void configure_eic_callback(void)
/* Configures and registers the External Interrupt callback function with the driver.  */
static void configure_eic_callback(void)
{
	extint_register_callback(extint_callback,
			BUTTON_0_EIC_LINE,
			EXTINT_CALLBACK_TYPE_DETECT);
	extint_chan_enable_callback(BUTTON_0_EIC_LINE,
			EXTINT_CALLBACK_TYPE_DETECT);
}