1.\"- 2.\" SPDX-License-Identifier: BSD-2-Clause 3.\" 4.\" Copyright (c) 2025 Diane Bruce 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd November, 2025 29.Dt UFINTEK 4 30.Os 31.Sh NAME 32.Nm ufintek 33.Nd Fintek F81232 USB to serial UART driver 34.Sh SYNOPSIS 35.Cd "device usb" 36.Cd "device ucom" 37.Cd "device ufintek" 38.Pp 39In 40.Xr rc.conf 5 : 41.Cd kld_list="ufintek" 42.Pp 43In 44.Xr sysctl.conf 5 : 45.Cd hw.usb.ufintek.debug=1 46.Sh DESCRIPTION 47The 48.Nm 49driver provides support for the F81232 serial adapter from FINTEK. 50If the appropriate hardware is detected, 51the driver will be loaded automatically by 52.Xr devmatch 8 . 53To load the driver manually, add it to the 54.Ic kld_list 55in 56.Xr rc.conf 5 , 57or use 58.Xr kldload 8 59at runtime. 60The device is accessed through the 61.Xr ucom 4 62driver which makes it behave like a 63.Xr tty 4 . 64.Pp 65Call out through this interface with applications like 66.Xr cu 1 67or 68.Xr tip 1 . 69.Sh HARDWARE 70The 71.Nm 72driver supports the following USB to serial UART controllers: 73.Pp 74.Bl -bullet -compact 75.It 76FT82332 77.El 78.Sh SYSCTL VARIABLES 79These settings can be entered in the 80.Xr loader 8 81prompt, set in 82.Xr loader.conf 5 , 83.Xr sysctl.conf 5 , 84or changed at runtime with 85.Xr sysctl 8 : 86.Bl -tag -width "hw.usb.uftdi.debug" 87.It Va hw.usb.uftdi.debug 88Enable debugging messages, default 89.Ql 0 90.Ql 1 91.El 92.Sh FILES 93.Bl -tag -width "/dev/ttyU*.init" -compact 94.It Pa /dev/ttyU* 95for callin ports 96.It Pa /dev/ttyU*.init 97.It Pa /dev/ttyU*.lock 98corresponding callin initial-state and lock-state devices 99.Pp 100.It Pa /dev/cuaU* 101for callout ports 102.It Pa /dev/cuaU*.init 103.It Pa /dev/cuaU*.lock 104corresponding callout initial-state and lock-state devices 105.El 106.Sh SEE ALSO 107.Xr cu 1 , 108.Xr tty 4 , 109.Xr ucom 4 , 110.Xr usb 4 111.Sh HISTORY 112The 113.Nm 114driver appeared in 115.Fx 16.0 116.Sh BUGS 117This driver is limited to 9600 baud. 118 119