US Patent 7600067 Methods for identifying bridge devices and systems thereof

Methods for identifying bridge devices and systems thereof. A bridge device receives a standard command. In response to the standard command, output information comprising at least one no-available parameter is generated. The bridge device sets the no-available parameter in the output information as a predetermined value if a command code or at least one no-available in the standard command matches a predefined value. The bridge device is identified by determining whether a value of the no-available parameter in the output information matches a predetermined value corresponding to a supported bridge device.