App to send hdmi cec command

Question

Can I make an app on an Android TV device that sends an HDMI-CEC command?

When you open the app, it should do the command and close.

Is it possible?

Answer 1

Google recently introduced a new system service called HdmiControlService to handle CEC:

With the introduction of the Android TV Input Framework (TIF), HDMI-CEC brings together all connected devices and minimizes compatibility issues. Android has created a system service called HdmiControlService to alleviate these pain points.

By offering HdmiControlService as a part of the Android ecosystem, Android hopes to provide:

• A standard implementation of HDMI-CEC for all manufacturers, which will reduce device incompatibility. Previously, manufacturers had to develop their own implementations of HDMI-CEC or use third-party solutions.
• A service that is well-tested against numerous HDMI-CEC devices already in the market. Android has been conducting rigorous research on compatibility issues found among the products and collecting useful advice from device implementers experienced in the technology. The CEC service is designed to keep a healthy balance between the standard and modifications to that standard so that it works with the products that people already use.

Learn more about it here: https://source.android.com/devices/tv/hdmi-cec