AVR Freaks

Hi,

I am new to ASF and I am trying to get familier with it. I am trying to do a simple Serial USART example on my SAMD21. This example  in the docs gives a step by step, but its doesn't tell me where some constants/macros are defined eg. which module I need to add to my solution in AS7.

void configure_usart(void)
{
	struct usart_config config_usart;
	usart_get_config_defaults(&config_usart);
	config_usart.baudrate    = 9600;
	config_usart.mux_setting = EDBG_CDC_SERCOM_MUX_SETTING;
	config_usart.pinmux_pad0 = EDBG_CDC_SERCOM_PINMUX_PAD0;
	config_usart.pinmux_pad1 = EDBG_CDC_SERCOM_PINMUX_PAD1;
	config_usart.pinmux_pad2 = EDBG_CDC_SERCOM_PINMUX_PAD2;
	config_usart.pinmux_pad3 = EDBG_CDC_SERCOM_PINMUX_PAD3;
	while (usart_init(&usart_instance,
	EDBG_CDC_MODULE, &config_usart) != STATUS_OK) {
	}
	usart_enable(&usart_instance);
}

I get the following error:

'EDBG_CDC_SERCOM_MUX_SETTING' undeclared (first use in this function)	

What modules are these defined?

Here is whats I my project so far