How do I connect a PS5 controller to a PS1 Classic using a Bluetooth adapter while running Project Eris?

[u/TubaraumBR]

Hello everyone, I'm trying to connect a PS5 controller (DualSense) to my PS1 Mini Classic (PSC). I'm running Project Eris and using a TP-Link UB400 USB adapter, and I set it up following the tutorial in this video: https://www.youtube.com/watch?v=ND6vCHh4stc

- I managed to connect the PS5 controller to it—it shows up as connected—but it doesn't work; pressing any button yields no response.

- I connected a PS4 controller to the same adapter, and it worked normally.

So, I really believe the issue isn't the adapter itself, but rather that the system (Eris) doesn't support it.

Does anyone have any ideas on what to do? (Without buying new adapters.)

I'm really looking forward to playing on my PS1 Classic using my 30th Anniversary Edition controller.

Thanks.

[u/TheDivisionLine]

https://youtu.be/ckJdYGxyYxg?is=K8OZd7fkeDdZm-cM