virtual_oss_cmd(8)

virtual_oss_cmd8

Modify a running virtual_oss(8) instance's options

Usage

virtual_oss_cmd

Overview

virtual_oss_cmd pass additional command line arguments to a running virtual_oss(8) instance via its control device. Supported command line arguments:

-E xxx
-F xxx
-G xxx
-L xxx
-M xxx
-O xxx
-P xxx
-R xxx
-a xxx
-b xxx
-c xxx
-d xxx
-e xxx
-f xxx
-l xxx
-m xxx
-p xxx
-s xxx
-w xxx

Refer to virtual_oss(8) for a detailed description of the command line arguments.

Examples

To change the recording device:

virtual_oss_cmd /dev/vdsp.ctl -R /dev/dsp4

To change the playback device:

virtual_oss_cmd /dev/vdsp.ctl -P /dev/dsp4

To enable recording:

virtual_oss_cmd /dev/vdsp.ctl -E 1

To disable recording:

virtual_oss_cmd /dev/vdsp.ctl -E 0

To create a new DSP device on the fly:

virtual_oss_cmd /dev/vdsp.ctl -b 16 -c 2 -d dsp.new

To show system information:

virtual_oss_cmd /dev/vdsp.ctl

Releases

Unchanged in 3 releases since FreeBSD 15.0-RELEASE.

  1. 15.0–16.0

Authors

virtual_oss_cmd was written by Hans Petter Selasky [email protected].

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.