the version of ios56 you have makes no difference if you're using a loader that's using a different ios. a game can only use one ios.
waninkoko's cios38rev15 is like its name would suggest, a custom ios 38. ios38 has no provisions for usb instruments. ios37 and ios56 do. with hermes, you can install cios38+37 to either ios222 or ios223 and use that.
then, the only setting you need to make is anti002, or whatever it's called in your usb loader.