Numark N4
Mapping by Swiftb0y, from Mixxx · Mixxx manual page
4 channel MIDI Mapping for Numark N4
openDJ supports 6 of the 10 controls this mapping sets directly. The rest of the mapping runs as a script, which isn't counted here.
This mapping doesn't describe its controls one by one, so there's no list here yet. The Mixxx manual page above shows the layout.
Generated from res/controllers/Numark N4.midi.xml. If something here is wrong on your controller, tell us.