10. A method as described in claim 9 , wherein the credentials supplied by the accessory device comprises a resistor value of a resistor associated with the accessory device.
10. A method as described in claim 9 , wherein the credentials supplied by the accessory device comprises a resistor value of a resistor associated with the accessory device. 11. A method as described in claim 10 , wherein multiple different types of accessory devices connectable to the host computing device have different resistor values used to distinguish between the different types of accessory devices.