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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 14:02:27 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 14:02:27 -0400
commit6d8bdc65446a704d0750217efd05532fc641ea7d (patch)
tree8ae6d698b3c9801750a8b117b3842fb369872a3a /static/openbsd/man4/ucom.4
parent2f467bd7ff8f8db0dafa40426166491d7f57f368 (diff)
docs: OpenBSD Man Pages Added
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+.\" $OpenBSD: ucom.4,v 1.35 2024/05/15 01:41:18 kevlo Exp $
+.\" $NetBSD: ucom.4,v 1.3 2000/04/14 14:55:18 augustss Exp $
+.\"
+.\" Copyright (c) 1999 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Lennart Augustsson.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: May 15 2024 $
+.Dt UCOM 4
+.Os
+.Sh NAME
+.Nm ucom
+.Nd USB tty support
+.Sh SYNOPSIS
+.Cd "ucom* at moscom?" # MosChip Semiconductor MCS7703
+.Cd "ucom* at uark?" # Arkmicro Technologies
+.Cd "ucom* at ubsa?" # Belkin
+.Cd "ucom* at uchcom?" # WinChipHead CH9102/343/341/340
+.Cd "ucom* at ucycom?" # Cypress
+.Cd "ucom* at uftdi?" # FTDI
+.Cd "ucom* at uipaq?" # iPAQ
+.Cd "ucom* at ukspan?" # Keyspan
+.Cd "ucom* at umcs?" # MosChip Semiconductor multiport
+.Cd "ucom* at umct?" # MCT
+.Cd "ucom* at umodem?" # Standardized umodem
+.Cd "ucom* at umsm?" # Qualcomm MSM
+.Cd "ucom* at uplcom?" # Prolific PL-2303
+.Cd "ucom* at uscom?" # simple USB serial adapters
+.Cd "ucom* at uslcom?" # Silicon Laboratories CP2101/CP2102
+.Cd "ucom* at uslhcom?" # Silicon Laboratories CP2110
+.Cd "ucom* at uticom?" # Texas Instruments TUSB3410
+.Cd "ucom* at uvisor?" # Handspring Visor
+.Cd "ucom* at uvscom?" # SUNTAC Slipper U VS-10U
+.Cd "ucom* at uxrcom?" # Exar XR21V1410
+.Sh DESCRIPTION
+The
+.Nm
+driver attaches to USB modems, serial ports, and other devices that need
+to look like a tty.
+The
+.Nm
+driver behaves like a
+.Xr tty 4 :
+this means that normal programs such as
+.Xr cu 1
+or
+.Xr pppd 8
+can be used to access the device.
+.Pp
+The
+.Va portno
+locator can be used to decide which port to use for devices that have
+multiple external ports.
+.Sh FILES
+.Bl -tag -width "/dev/ttyU?XX" -compact
+.It Pa /dev/ttyU?
+tty devices
+.It Pa /dev/cuaU?
+call out devices (see
+.Xr tty 4 )
+.El
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr tty 4 ,
+.Xr usb 4
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Nx 1.5 .
+.Ox
+support was added in
+.Ox 2.7 .