i have eval-adau1777z board. i want to record 4 channel data in my raspberry pi. can anyone please provide linux driver for adau1777.
Unfortunately we don't have a driver for ADAU1777 part.
I also can't tell you when we will create one but meanwhile just for capturing the I2S data you can use "snd-soc-dummy" as dummy codec.…
You can try to search for some RPI like board that has at least two I2S inputs or support TDM. Also we have some evalboards for our SHARC DSPs that are perfect for this task.
Take care that ADAU1777…
Sorry but all support I can give you for devicetree overlay is to pint you to Raspberry PI foundation. Something like here.
Related to your second question SHARC Audio module will allow you to…