freebsd-src/sbin/conscontrol/conscontrol.8
Stefan Eßer 8c3efc36e8 MFC r270647: Add references to vt(4) and the configuration files in /usr/sha
MFC r270653: Update man-pages to correctly refer to changed pathes and namin
MFC r270657: More man pages that need to know about vt in addition to syscon
MFC r270659: (by pluknet@) Missed comma.
MFC r270660: Back-out the references to vt(4) from this man-page. It appears
MFC r270933: Add references to vt(4) to further man-pages.
MFC r270934: Final patches to the tools used to convert syscons keymaps for
MFC r270935: Add vt(4) support to the console initialisation script, specifi

Second batch of MFCs to add support for Unicode keymaps for use with vt(4).

It contains the following changes:

- Add references to vt(4) to relevant man-pages.
- Update comment in defaults/rc.conf to mention vt
- Update rc.d/syscons to warn about syscons keymaps used under vt.
  An attempt is made to identify the vt keymap to load instead.
- Minor changes to the conversion tool based on mail comments on keymaps.

Relnotes:	yes
2014-09-04 13:45:16 +00:00

117 lines
3.4 KiB
Groff

.\"
.\" Copyright (c) 2001 Jonathan Lemon <jlemon@FreeBSD.org>
.\" All rights reserved.
.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" $FreeBSD$
.\"
.Dd April 14, 2011
.Dt CONSCONTROL 8
.Os
.Sh NAME
.Nm conscontrol
.Nd control physical console devices
.Sh SYNOPSIS
.Nm
.Op Cm list
.Nm
.Cm mute on | off
.Nm
.Cm add | delete
.Ar console
.Nm
.Cm set | unset Ar console
.Sh DESCRIPTION
The
.Nm
utility is used to examine and modify the physical devices which back
the virtual console devices.
If no arguments
(or only the
.Cm list
command)
are specified,
the current console settings are shown.
.Pp
There are two types of logical consoles; a high level console which
is represented by
.Pa /dev/console ,
and a low level console.
The low level console is used for kernel
.Xr printf 9
and
.Xr ddb 4
debugger support,
while the high level console is used by user programs like
.Xr syslogd 8 .
Multiple device support is implemented only for the low level console;
the high level console is set to the first device in the console list.
.Pp
Multiple console support may be invoked by passing the kernel the
.Fl D
flag from the boot loader, or by using
.Nm
to change the list of console devices after the system has booted.
.Pp
The following options are available:
.Bl -tag -width indent
.It Cm add | delete Ar console
Add or delete a physical device from the logical console.
The device must support low-level console operations.
Adding a device will place it at the front of the list of console
devices; the first device is used for the high level console.
.Pp
The
.Ar console
argument
is the name of a console device in
.Pa /dev ;
the name of the directory may be omitted.
.It Cm mute on | off
Change the state of console muting.
All console output is suppressed when console muting is
.Cm on .
.It Cm set | unset Ar console
Set or unset the virtual console.
When unset, output from the system, such as the kernel
.Xr printf 9 ,
always goes out to the real main console.
When set, it goes to another.
This is an interface to the tty ioctl
.Dv TIOCCONS .
.El
.Sh SEE ALSO
.Xr sio 4 ,
.Xr syscons 4 ,
.Xr tty 4 ,
.Xr vt 4 ,
.Xr boot 8 ,
.Xr loader 8
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 5.0 .
.Sh AUTHORS
.An Jonathan Lemon