I've got an MKii express foot controller, the powered hub, and an Ipad camera connection kit, and my Ipad with retina display won't recognize the controller in Loopy HD ? 
  
Can anyone tell me what specific settings I need to use when I set up the controller switches to send Midi CC# messages 1-4 for each pedal (set up on my PC) ... 
  
What am I missing ??? 
  
Any help would be greatly appreciated. 
  
Thanks. 
  
BB