xref: /openbsd/share/man/man4/viocon.4 (revision 4cfece93)
1.\"     $OpenBSD: viocon.4,v 1.3 2017/06/21 08:21:14 akfaew Exp $
2.\"
3.\" Copyright (c) 2015 Stefan Fritsch <sf@sfritsch.de>
4.\"
5.\" Permission to use, copy, modify, and distribute this software for any
6.\" purpose with or without fee is hereby granted, provided that the above
7.\" copyright notice and this permission notice appear in all copies.
8.\"
9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16.\"
17.Dd $Mdocdate: June 21 2017 $
18.Dt VIOCON 4
19.Os
20.Sh NAME
21.Nm viocon
22.Nd VirtIO console device
23.Sh SYNOPSIS
24.Cd "viocon* at virtio?"
25.Sh DESCRIPTION
26The
27.Nm
28driver provides support for the
29.Xr virtio 4
30console interface provided by KVM, QEMU, and others.
31.Pp
32It provides serial ports that are attached as ttys.
33Use as a kernel console for
34.Ox
35is not yet supported.
36The multiport feature is not yet supported.
37.Sh FILES
38.Bl -tag -width Pa -compact
39.It Pa /dev/ttyVI00
40.It Pa /dev/ttyVI10
41.It Pa /dev/ttyVI20
42.It Pa /dev/ttyVI30
43.It Pa /dev/ttyVI40
44.El
45.Sh SEE ALSO
46.Xr intro 4 ,
47.Xr tty 4 ,
48.Xr virtio 4
49.Sh HISTORY
50The
51.Nm
52driver first appeared in
53.Ox 5.9 .
54.Sh AUTHORS
55.An -nosplit
56The
57.Nm
58driver was written by
59.An Stefan Fritsch Aq Mt sf@sfritsch.de .
60