Perechesov Vladimir

Most probably it is not because of formatting SPI. Are you sure you use same kernel version? because in some kernel there is issue with microphone. Of cause if we both speak about 3.5jack micro.

To be honest I don't know how to do this and even more I am not sure in correctness of of my code in term of conventions. I mean that for example I add #define-s with names ES8388_xxx to header file ES8228 and so on.

It was found that 3.5mm jack has issue with using headset. Speakers are work good on my "uname -a Linux orangepi5-plus 6.19.0-rc5-edge-rockchip64 #1 SMP PREEMPT Mon Jan 12 03:03:14 UTC 2026 aarch64 aarch64 aarch64 GNU/Linux" system but micro is silent. By debugging it was found that register 0x2b(43) "DAC Control 21" has difference between actually used es8388 on OP5+ and original driver's IC es8328. Also microphone bias was never activated by bits 2,3 in register 0x03. I create patch and now microphone work properly. I don't know how to properly share this patch so I will attache it here. orangepi-5-plus_ES8388_Microphone.patch