Discovery

Discover HDMI devices that support CEC and provide settop information to those devices

Power

Synchronize settop power state with HDMI device power state

Switching

Switch settop HDMI inputs to settop HDMI outputs

Channel Change

Change channel on settop from HDMI device

Audio

Control audio mute/volume on HDMI device from settop and vice versa

User Input

Accept user input commands from HDMI device