Provided by: oss4-base_4.2-build2010-5ubuntu4_amd64 bug


       oss_userdev - OSS client/server audio pseudo device.


       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.


       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.


       ยท  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.


              Device configuration file.


       4Front Technologies

                                           13 June 2019                            oss_userdev(7)