i've added this :
- wii: for each game, you can choose if the axis controls: i(nfrared), s(wing), t(ilt) or n(unchuk),
for example, to play mariokart wii, rename it mario_kart.side.ti.iso (to get the tilt on the first axis and infrared on the 2nd one)
for example, to play mario galaxy, rename it mario_galaxy.ni.iso (got get the nunchuk on the first axis and infrared on the 2nd one)
it's not as simple as i would prefer, but it makes a lot of games playable with a virtual gamepad.