I work on the android to support the Carplay.Process for establishing a CarPlay session. How can I get the reference source code or sdks for process of: 1、Enumerate (Accessory is USB Host) 2、Detect if Apple device supports CarPlay 3、Request & Perform USB Role Switch 4、Enumerate (Apple device is USB Host) 5、Establish iAP2 Session

I am trying to read register values from an MFi Authentication Coprocessor 3.0 chip MFI343S0017 by I2C. But all the return values are 0x00 instead of the expected values.What can possibly be going wrong?