.\"	$NetBSD: viocon.4,v 1.2 2022/08/13 17:02:10 wiz Exp $
.\"     $OpenBSD: viocon.4,v 1.3 2017/06/21 08:21:14 akfaew Exp $
.\"
.\" Copyright (c) 2015 Stefan Fritsch <sf@sfritsch.de>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd August 13, 2022
.Dt VIOCON 4
.Os
.Sh NAME
.Nm viocon
.Nd VirtIO console device
.Sh SYNOPSIS
.Cd "viocon* at virtio?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Xr virtio 4
console interface provided by KVM, QEMU, and others.
.Pp
It provides serial ports that are attached as ttys.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /dev/ttyVI00
.It Pa /dev/ttyVI10
.It Pa /dev/ttyVI20
.It Pa /dev/ttyVI30
.It Pa /dev/ttyVI40
.El
.Sh SEE ALSO
.Xr intro 4 ,
.Xr tty 4 ,
.Xr virtio 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 5.9 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written for
.Ox
by
.An Stefan Fritsch Aq Mt sf@sfritsch.de .
It was ported to
.Nx 10.0 .
.Sh BUGS
Use as a kernel console for
.Nx
is not yet supported.
.Pp
The multiport feature is not yet supported.