Patent ID: 7921231

Claim:
A method comprising: connecting a receiving device to a cable, the cable including a single wire control bus and a power bus, the receiving device initially being in a disconnect state, the disconnect state indicating that the receiving device is not connected to a transmitting device; enabling a voltage potential of a predetermined value on the power bus; driving a signal on the control bus by the receiving device at a first signal value; when the receiving device is in the disconnect state and a signal of a first value from a transmitting device is detected by the receiving device on the control bus, transitioning the receiving device to a first state for a connection with a first type of transmitting device, transitioning the receiving device to the first state including disabling hot plug functionality and enabling a pull down for the control bus by the receiving device; and when the receiving device is in either the disconnect state or the first state and a predetermined power signal provided by the transmitting device is detected on the power bus by the receiving device, then transitioning the receiving device to a second state for a second type of transmitting device.