040000 tree 3048d4da856adc8d32d84e5b66dfd249d9d4334d	android
040000 tree c01f943f76ea9f8d6bc3ddd1c11f467db9b8c6de	linux
040000 tree c1e8a8a80236f2574e09b85352dcb0651de6c04d	openiotsdk
040000 tree 7cd6106828fdf14efa5e1bac7bd64d10d7dda94b	tv-common