Protocol tag, one of ESPLocalControlProtocol.
Protocomm session-security endpoint, e.g. rmaker_local_ctrl/session.
Root key to read in the version response when probing the security scheme
version, e.g. rmaker_local_ctrl for {"rmaker_local_ctrl": {…}}.
Version/service-info endpoint, e.g. rmaker_local_ctrl/version.
Per-connection session details passed to ESPLocalControlAdapterInterface.connect. The protocomm handshake endpoint differs per local-control protocol, so the transport tells the native layer which paths to use instead of the adapter hardcoding them.
Adapters built against an earlier SDK simply ignore the extra argument and keep using their built-in default paths.