Dev:Nfcd

nfcd is a daemon running under the mobile user. It handles the communications between PassKit and the underlying hardware and libraries.

The core objects in it are:
 * NFDaemon
 * NFFieldDetectController
 * NFCoreTelephonyConnection
 * NFPowerManager
 * NFAbstractController
 * NFCardEmulationController
 * NFSecureElementController

NFDaemon - (void)XPCConnection:(id) didReceiveCommand:(id)

Launchd plist
Where the XPC service is registered under the "com.apple.nfcd" name

Supported XPC Commands
These are formatted into a JSON list i.e.