1.\" 2.\" Copyright (c) 2021-2022 Hans Petter Selasky <hselasky@freebsd.org> 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" 26.Dd February 12, 2025 27.Dt VIRTUAL_OSS_CMD 8 28.Os 29.Sh NAME 30.Nm virtual_oss_cmd 31.Nd modify a running 32.Xr virtual_oss 8 33instance's options 34.Sh SYNOPSIS 35.Nm 36.Sh DESCRIPTION 37.Nm 38pass additional command line arguments to a running 39.Xr virtual_oss 8 40instance via its control device. 41Supported command line arguments: 42.Bl -tag -width indent 43.It Fl E Ar xxx 44.It Fl F Ar xxx 45.It Fl G Ar xxx 46.It Fl L Ar xxx 47.It Fl M Ar xxx 48.It Fl O Ar xxx 49.It Fl P Ar xxx 50.It Fl R Ar xxx 51.It Fl a Ar xxx 52.It Fl b Ar xxx 53.It Fl c Ar xxx 54.It Fl d Ar xxx 55.It Fl e Ar xxx 56.It Fl f Ar xxx 57.It Fl l Ar xxx 58.It Fl m Ar xxx 59.It Fl p Ar xxx 60.It Fl s Ar xxx 61.It Fl w Ar xxx 62.El 63.Pp 64Refer to 65.Xr virtual_oss 8 66for a detailed description of the command line arguments. 67.Sh EXAMPLES 68To change the recording device: 69.Bd -literal -offset indent 70virtual_oss_cmd /dev/vdsp.ctl -R /dev/dsp4 71 72.Ed 73To change the playback device: 74.Bd -literal -offset indent 75virtual_oss_cmd /dev/vdsp.ctl -P /dev/dsp4 76 77.Ed 78To enable recording: 79.Bd -literal -offset indent 80virtual_oss_cmd /dev/vdsp.ctl -E 1 81 82.Ed 83To disable recording: 84.Bd -literal -offset indent 85virtual_oss_cmd /dev/vdsp.ctl -E 0 86 87.Ed 88To create a new DSP device on the fly: 89.Bd -literal -offset indent 90virtual_oss_cmd /dev/vdsp.ctl -b 16 -c 2 -d dsp.new 91 92.Ed 93To show system information: 94.Bd -literal -offset indent 95virtual_oss_cmd /dev/vdsp.ctl 96 97.Ed 98.Sh SEE ALSO 99.Xr virtual_oss 8 100.Sh AUTHORS 101.Nm 102was written by 103.An Hans Petter Selasky hselasky@freebsd.org . 104