| 主权项 |
1. A method of selecting an identifier value, the method comprising:
at a device including a host interface, wherein the device is operatively coupled via the host interface to a host device as well as other one or more devices, and wherein the device is operative to select a distinctive device identifier value different from any identifier value which any of the other devices have indicated as being used:
receiving an enumeration message via the host interface;identifying the enumeration message as a command originated by the host device or as a response message from one of the other devices;in response to identifying the enumeration message as a command, selectively sending an enumeration response message to the host device, the enumeration response message indicating the distinctive device identifier value; andin response to identifying the enumeration message as a response message from one of the other devices, reading from the response message an identifier value used by such other device and at least temporarily storing this identifier value at the device to enable the device to select its distinctive device identifier value,wherein the distinctive device identifier value enables the host device to specifically identify the device as a message recipient. |
