040000 tree 2a541e04f6c02efc523cd4921162cd3d42017061	api
040000 tree 4f1f6c359bb05332d62dc37d16b7c50baa96316d	api_ext
040000 tree afe83ced77f7972ccd9499b8ed40240ec172e893	devices
040000 tree b17bc22c458d2099d60abad6c027de4aae5a5ccc	memory_region