1949 Product 0402- — Gamepad -vendor

lsusb You will see an entry like: Bus 001 Device 003: ID 1949:0402 Saitek Ltd. (Note: Linux sometimes misidentifies the vendor due to a database overlap, but the hex code is correct).

If you see this string in your system, you now know: You are holding a "SainSonic" or "Shenzhen Saidian" reference controller. It will work for classic emulation out of the box. For modern gaming, you will need x360ce. And if it breaks, do not repair it – simply buy a modern controller with official XInput support. gamepad -vendor 1949 product 0402-

It will almost certainly be detected as a "Generic USB Joystick" . You will not get any advanced features like vibration (if present), LED control, or native XInput support (Xbox mode). It defaults to DirectInput mode. lsusb You will see an entry like: Bus