For anyone using Arch Linux or its derivatives like Manjaro, I uploaded a package to the AUR that will replace the existing driver with the patched one using DKMS similar to how Silver-X did it.

https://aur.archlinux.org/packages/h...y-ds3usb-dkms/

Is there a way we can tell if the patch was accepted and merged into mainline Linux besides watching the change logs?

I'm not sure when this change took effect, but this issue is now SOLVED in the mainline kernel! I have a feeling raising awareness and contacting the core dev team helped pushed this issue to a resolution after many years of this module being broken. I verified this is now working in the current version of RetroPie for Raspberry Pi and my own PC. Both are running kernels 5.4 or newer. I have another Raspbian based distro, RGB-Pi, still running an old 4.XX kernel. 4.14 I believe, which means the controller adapter buttons are broken on that one. The maintainers of the RGB-Pi distro really need to update that kernel to 5.X, especially for this issue.

For that lingering old kernel, I used Sliver-X's DKMS script to build against the old code before the module was broken. This worked a treat and now I can use RGB-Pi with my PS2 controller! Now we finally have a long term fix and a DKMS based solution for old kernels. Fantastic stuff!!

I believe my kernel patch for this is merged in all stable trees going back to 4.14.

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