All joysticks are configurated as "standard joystick" for dolphin.
For playing games with "only" wiimote support, you have to mapping the joystick to an emulated wiimote.
Enter a game, and then Press ALT+TAB on keyboard. That makes the dolphin window appear, and then F10. Only keyboard it can be used (although there's a mouse, you can't see it)...then, follow the instructions from the link (it's in spanish, but options are pointed on english. You'll get it)
Also, you can enter configurations for dolphin, PCSX2, PPSSPP and retroarch from shortcuts when you press F1 and then select "Applications" on the file browser...i guess that's even more easy.