Patent ID: 8144625

Claim:
A system for communicating configuration data between devices, the system comprising: a main communication channel coupled to a source device, the main communication channel communicating data from the source device to the sink device; a first bi-directional configuration channel coupled to the source device and to a combiner, the first bi-directional configuration channel transmitting configuration data having a first format; a second bi-directional configuration channel coupled to the sink device and to the combiner; a Display Data Channel coupled to the source device and to the combiner, the Display Data Channel transmitting configuration data having a second format; the combiner for receiving configuration data from the source device via the first bi-directional configuration channel or via the Display Data Channel and transmitting the configuration data received from the first bi-directional configuration channel or from the Display Data Channel to the sink device via the second bi-directional configuration channel while preventing data transmission from the sink device via the second bi-directional configuration channel.