Compatibility with Raspberry Pi Codec Zero

[zanellia]

Hey! I see that the WM8960 codec is supported, but the reference hardware is the Waveshare WM8960 Hi-Fi Sound Card HAT https://www.waveshare.com/wm8960-audio-hat.htm. How much effort should I budget to get the Raspberry Pi Codec Zero https://www.raspberrypi.com/products/codec-zero/ to work with simultaneous input and output audio streams?

[rsta2]

This sound card uses an other codec (DA7212) than the sound cards, which are supported by Circle so far. So one has to develop a new sound controller class for the DA7212, similar to the class CWM8960SoundController for the WM8960. At least the Probe() method must be implemented, which initializes the device registers to appropriate default values via I2C. It would be good to have an existing driver for the DA7212 as a reference. Otherwise the datasheet must be used.