Patent ID: 7904934

Claim:
A cable card of an open cable system, the cable card comprising: a controller configured to forward a request to a host in the open cable system; and the controller is further configured to receive High-Definition Multimedia Interface (HDMI) status information associated with a plurality of HDMI ports in response to the request, wherein the HDMI status information is received through a CPU interface, the CPU interface including a generic diagnostic resource assigning diagnostic identifiers to corresponding diagnostic items, respectively, and wherein a single diagnostic identifier of the diagnostic identifiers is assigned to the HDMI status information wherein the generic diagnostic resource enables the cable card to receive the HDMI status information including audio coding format, audio sampling frequency and audio sample size associated with audio utilized on each of the HDMI ports, wherein the HDMI status information further includes information indicating whether each of peripheral devices linked to each of the HDMI ports uses HDMI or digital visual interface (DVI), wherein when the HDMI status information includes multiple diagnostics corresponding to the plurality of HDMI ports, the multiple diagnostics are identified by the same diagnostic identifier, and wherein the HDMI status information includes connect status information indicating whether a connection exists on each of the HDMI ports, host HDCP status information indicating whether a HDCP is enabled on each of the HDMI ports, device HDCP status information indicating a HDCP status of each of the peripheral devices connected to the host, and video format information indicating a current video format used on each of the HDMI ports.