Rock 4c+ and radxa DSI screen for android how to

Hello.

Can you please tell me how to connect properly DSI screen and run it together with original image of android 11 from radxa git repository?
I know it is can be done, as I sow post here where person was unable to turn the screen, but I tried to do so from ADB shell and did not find that ls /sys/class/drm/card0-DSI-1 and it is does not exist in that dir of android 11 I was able to download. Did not find any other info on how I can run it.
Can you please give me instructions for step by step or link where I can find all information.

Kind regards
Yurgen

Which screen did you buy, 10 inches? 8 inches?

Hello.

Thank you for your reply. I got both. But preferable for 10HD screen. And I hope I will understand on how to do it for another after Your help.

Just in case, I’ve checked

cmd overlay list --user current

And I did not find overlay in there like for linux. Nothing looks similar.

Kind regards
Yurgen

Hello.

Do anyone who already using any Radxa DSI screen with Rock4 and android…
Can you please give me any instructions on how to do that? Or link for instructions
where sad what needs to do/install/type to run them together, please?

Kind regards
Yurgen