040000 tree 207b7d6786b4317fbfbce56ee667839a41d486cb	uart_async_api
040000 tree 0ccaf44cf1737557ba5f00528b119e3415f14bb0	uart_basic_api
040000 tree e3cf8efb31183ab5689cedb65e0b8dad75c32cc8	uart_emul
040000 tree 3824c74cc14ca7f3ba85a01c8db3b677c0089ef2	uart_mix_fifo_poll
040000 tree dae035582a1f50161b979f7c9606729ac8f5a88d	uart_pm