Universal Joystick Driver Work
Windows uses WDM (Windows Driver Model) with KMDF/HID minidrivers; Linux uses evdev and hidraw; macOS has IOKit (now DriverKit). Writing a truly universal driver that is binary-compatible across OSes is impossible; instead, projects like SDL2 (Simple DirectMedia Layer) or libusb-based user-space drivers (e.g., vJoy, hidapi) offer source-level portability.
Raw joystick inputs suffer from mechanical drift. The UJD implements a "Soft Deadzone" algorithm. universal joystick driver