I use an iPad running Cubasis and M-Audio Keystation Mini-32 (a USB-powered keyboard) to control it.
I connect Keystation to iPad via Camera Connection Kit, and it works good.
Recently I bought Behringer iS202 dockstation for iPad, it has standart 5-pin MIDI IN/OUT ports and USB-MIDI port (USB B-type).
I thought that I could connect my Keystation Mini-32 to USB-MIDI port, but it doesn’t work this way 
Is there a way to make it work (maybe I should make some settings in Cubasis ?) or Behringer’s USB-MIDI is made to connect iStudio to computer only ?
Please, help !!! 