040000 tree e541409e85c8c66d1d77b7b692894f20c075a0ca	libboard_sam3s-ek
040000 tree dc1e1f9b1b581c2ff3421488703dc7508518ebea	libchip_sam3s
040000 tree 52ec051f40ac408668df20971718138eca96c8f8	usb