040000 tree 51b7393eaf4afce8895839bf04b00129e88fdce2	api
040000 tree 692af1aa85a1fee8d6679dfcad43c96e17c91f6f	api_ext
040000 tree 2bc31083c29f68e840692d27e43f7c2778136ea9	devices
040000 tree 99be3d1360df7dad8f4e39c907f57eebef9c3d8a	memory_region