I am using a kindle fire 7" previous generation purchased Dec 2012 and trying to connect a korg nano key midi controller. These are the specs for the kindlePortsUSB 2.0 (micro-B connector) port for connection to a PC or Macintosh computer or to connect to the Kindle PowerFast charging accessory Audio3.5 mm stereo jack and integrated stereo speakers,Content Formats SupportedKindle (AZW), KF8, TXT, PDF, unprotected MOBI, PRC natively, Audible Enhanced format (AAX), DOC, DOCX, JPEG, GIF, PNG, BMP, non-DRM AAC, MP3, MIDI, PCM/WAVE, OGG, WAV, MP4, AAC LC/LTP, HE-AACv1, HE-AACv2, AMR-NB, AMR-WB, HTML5, CSS3, MP4, 3GP, VP8(.webm).
specs for the korg nano key: power supply: us bus power mode, power consumption: 100mA or less
Ihave been told that the Kindle needs an USB host mode or 'OTG'. Does anyone know if the problem is with the kindle fire not being able to power the controller. Would a powered usb hub work or is it because of the USB host mode or OTG? Any help would be greatly appreciated.