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100644 blob afe43fa5a6d7cac6901a5f1bc7c5043fc6d9fe6e	Makefile
040000 tree 7e85031daa82fa1700eaf03c8d4756ded2ea8764	bcm2835-audio
040000 tree 1a67d6edd204e0684fc867939ae6a05e01dfa018	bcm2835-camera
040000 tree 9c8e9e165386aa3d94033a1ef16f39d9bcdeb034	interface