How do get the VIBRATION to work with NullDC (Dreamcast) emulator?

[GuyVelella]

Im using a PS4 dualshock. It works when I play PC games. Rumble works when I use the PS2 and N64 emulater. Im using a dreamcast emulator and I dont feel anything during gameplay. The gamepad works, How do i enable it to vibrate?

[ulaoulao]

Depends on the DC emulator some do not work with rumble at all. Others are very tricky to set up, few are easy.