XBEE on ConnectCore® 6 SBC

I have a ConnectCore® 6 SBC with a light weight Linux loaded. I’ve installed an XBee Pro S2 on the xbee socket.
Can anyone help me on how to talk to or read from the XBee module ?

I believe the interface is a regular serial port. you can use AT commands. also I think latest version of Digi Embedded Yocto for cc6 supports XBEE in API mode.