I have ADAU1466 board with external ADC/DAC converters based on PCM1802/PCM5102. Raspberry Pi used for control adau via i2c. But - I found some solutions for work with audio on raspberry pi via i2s (for example with codecs or ADC/DAC).
But - Can I connect adau board with some project via available i2s buses to Raspberry Pi via I2S as "External Effect Loop"? In adau project I just need to add a in/out for corresponded buses, but... How to connect rasbperry pi for this SDATA input/output? Raspberry pi is a Master for I2C communication with adau, I need to enable rasperry slave for I2S? What about clocking? how it need to be configurated, if I want get sound from adau and then send it back?