Gamepad -vendor 1949 Product 0402- ✦

If it’s an actual adaptor — you need a real DS4 controller to connect to it.

The Stadia Controller is not plug-and-play on all Linux distributions because the kernel’s default xpad driver may not recognize 0x1949:0x0402. Instead, the hid-google-stadia module (introduced in kernel 5.15+) or the community xpadneo driver is required for full button mapping and rumble. gamepad -vendor 1949 product 0402-

The minus signs in your keyword string are advanced operators: If it’s an actual adaptor — you need