DJ-Tech Kontrol One
Mapping by Rob K, from Mixxx · Mixxx manual page · Forum thread
Mapping for the DJ Tech Kontrol One modular scratch controller. Provides controls for Channel1 through Channel4. March 2013.
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/DJ-Tech Kontrol One.midi.xml. If something here is wrong on your controller, tell us.