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virtual_oss_cmd.8
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virtual_oss_cmd.8
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.\"
.\" Copyright (c) 2021-2022 Hans Petter Selasky <hselasky@freebsd.org>
.\"
.\" 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 AUTHOR 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 AUTHOR 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 February 28, 2022
.Dt VIRTUAL_OSS_CMD 8
.Os FreeBSD
.Sh NAME
.Nm virtual_oss_cmd
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
.Nm
pass additional command line arguments to a running
.Xr virtual_oss 8
instance via its control device.
Supported command line arguments:
.Bl -tag -width indent
.It Fl E Ar xxx
.It Fl F Ar xxx
.It Fl G Ar xxx
.It Fl L Ar xxx
.It Fl M Ar xxx
.It Fl O Ar xxx
.It Fl P Ar xxx
.It Fl R Ar xxx
.It Fl a Ar xxx
.It Fl b Ar xxx
.It Fl c Ar xxx
.It Fl d Ar xxx
.It Fl e Ar xxx
.It Fl f Ar xxx
.It Fl l Ar xxx
.It Fl m Ar xxx
.It Fl p Ar xxx
.It Fl s Ar xxx
.It Fl w Ar xxx
.El
Refer to
.Xr virtual_oss 8
for a detailed description of the command line arguments.
.Sh EXAMPLES
To change the recording device:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl -R /dev/dsp4
.Ed
To change the playback device:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl -P /dev/dsp4
.Ed
To enable recording:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl -E 1
.Ed
To disable recording:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl -E 0
.Ed
To create a new DSP device on the fly:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl -b 16 -c 2 -d dsp.new
.Ed
To show system information:
.Bd -literal -offset indent
virtual_oss_cmd /dev/vdsp.ctl
.Ed
.Sh FILES
.Sh SEE ALSO
.Xr virtual_oss 8
.Sh AUTHORS
.Nm
was written by
.An Hans Petter Selasky hselasky@freebsd.org .
.Pp