040000 tree 8d45f9018d3121e4a770be38948c9bacaed4d254	uart_async_api
040000 tree d5cb549d9653c351421ce0ebf1edbd45676b3d78	uart_basic_api
040000 tree 5d46497990fe6e9f257b07497c115f4c9e22bce0	uart_emul
040000 tree 355cebb85f76a3ef755b947cf3ebbf4d8c5e88d5	uart_mix_fifo_poll
040000 tree 9beb131f38f9ecb296f1588518a8eb77aefa88a6	uart_pm