040000 tree 51b7393eaf4afce8895839bf04b00129e88fdce2	api
040000 tree 1edc8aa2480252217814abc7036fdc5ddaa4b10c	api_ext
040000 tree 2bc31083c29f68e840692d27e43f7c2778136ea9	devices
040000 tree b414eea12cc693fc6323a5d94d3050552041ab24	memory_region