Provided by: oss4-base_4.2-build2020-1ubuntu3_amd64 
NAME
oss_userdev - OSS client/server audio pseudo device.
NOTICE
This audio device is not designed to be used as-is by the users. It requires a specially designed server
application that implements the actual service (please see the OSS programming documentation for more
info). The server application will then create the audio devices that can be used to record and/or play
audio.
DESCRIPTION
The oss_userdev driver is a special purpose loop back audio device that can be used when implementing OSS
audio devices based on a server running in the background.
OPTIONS
• userdev_visible_clientnodes=0|1 By default (0) common client device node
(/dev/oss/oss_userdev0/client) will be created for all server instances. The clients will then get
directed to the right instance based on some search criteria (for example UID). This alternative is
best when using single server application that can serve large number of different sesions.
If this option is set to 1 then OSS will create separate client device nodes for each instance.
Applications will have to open the right device nodes. This alternative is best when oss_userdev is used
to create different kind of services in one system. In this way for example a VoIP link can be accessed
by opening a different device node than when opening some other service.
FILES
/etc/oss4/conf/oss_userdev.conf
Device configuration file.
AUTHOR
4Front Technologies
11 February 2015 oss_userdev(7)