.Dd February 20, 2020 .Dt com.apple.cmio.registerassistantservice 8 .Os .Sh NAME .Nm com.apple.cmio.registerassistantservice .Nd CoreMediaIO DAL Registration Assistant Service. .Sh DESCRIPTION .Nm Used by the CoreMediaIO Device Abstraction Layer for registration of Plug-Ins that provide audio/video capture using AVFoundation Capture APIs.