040000 tree e541409e85c8c66d1d77b7b692894f20c075a0ca	libboard_sam3s-ek
040000 tree cac2348d8a211800be5059ca126ecd2f33527912	libchip_sam3s
040000 tree d0baa62c2ac11f3e7b128c9f6f3c8c1c618e01fc	usb