Android using a ps3 controller on retroarch android

[EPgrouch]

I recently got a samsung galaxy A20 android phone. I installed retroarch but I'd like to use my ps3 controller how can I do this?

 

[Leonxor]

You will need a Type-C to USB plug before you can plug in your controller. If I recall correctly, you can start set up the controller to work with it once you plug it in. Then again, I use ePSXe so it may or may not be fully accurate

 

[EPgrouch]

I have a usb adapter. when I have it connected to my ps3 controller and phone but I get 0 input on the button config I also checked under the drivers section all that's listed under controllers is android and null nothing else. do I need a special driver?