040000 tree 37ed278da0ebf8b384b8ba1cf00b51c2f55a12f1	efr32
040000 tree e08c8c9ba585dc3b5ac2d86075bb6dafd4b15eb2	esp32
040000 tree 3a8be712e1ce7e52331c15d2dead6ab378daed00	linux-cirque
040000 tree a9af45c159d8aeeb5c682509a43831056ac2c66b	mbed
040000 tree 037376671c0c37b26f47d2942681cf6199ea15dd	nrfconnect
040000 tree 80e39ea30e34f40eda17ddf59c0b9ea51fcd0203	openiotsdk
040000 tree 70bf019278ae87c328074040c3a60bed0b6e2de6	tizen