040000 tree ab721a8463871ab4ebfb4080d6d5c551b463b975	aml-uart
040000 tree c4512eaa1a55cfc13c1abfd8b90ff4ee772cf15b	ftdi
040000 tree ce41e3039ab952bbdc59bcade2c92ad253ce35c4	intel-serialio
040000 tree 92b9a577f18ae531faeb5009bbe1e27a0b3f3069	serial