ugen5.2: <Silicon Labs CP2102 USB to UART Bridge Controller> at usbus5 uslcom0 on uhub2 uslcom0: <CP2102 USB to UART Bridge Controller> on usbus5 sudo screen /dev/ttyU0 500000 results in garbled output on FreeBSD: QJ`J!�F����@� �D�*#"�J��`��*�i����G���-���*� Tested on FreeBSD 12.2-RELEASE r366954 GENERIC on an Intel CPU machine as well as on FreeBSD 13.0 on a Raspberry Pi 3. The same device on the same machines on the same USB ports with the same bit rate works well when using Linux.