AVSTR — StreamCtrl

Summary: The StreamCtrl can be used to create a stream between two or more
endpoints by calling the bind_devs() operation with the
MMDevices to be bound as parameters. During the course of the
binding process, each MMDevice acts as a factory creating a VDev and
a StreamEndPoint. The application programmer who called bind_devs()
may want to query the resulting StreamEndPoints or VDevs, however
there is no easy way to obtain a reference to these objects since
they are not returned by the bind_devs() call.