uart(4) on FreeBSD
The text 1fdf01f39f6a, as FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
driver for Universal Asynchronous Receiver/Transmitter (UART) devices