You might give this a try:
1. Launch iTunes but do not connect the iPad.
2. Hold down the iPad's Home and Sleep buttons at the same time. This will force the iPad screen to fade and the Apple Logo to reappear. KEEP holding the two buttons down until the iPad's screen goes black.
3. Once the screen is black, release the Sleep button but keep holding down the Home button while you plug the cable into the iPad. Contunue holding the Home button until the you see the iTunes logo and the picture of the cable on the iPad screen. This may take up to 30 seconds.
4. iTunes should now detect the iPad.
iPad not appearing in iTunes
iOS: Device not recognized in iTunes for Mac OS X
iOS: Device not recognized in iTunes for Windows
IOS: Syncing with iTunes
Apple - Support - iPad - Syncing
ITunes: Syncing media content to your iOS devices
this sort of worked for me as in itunes and ipad are connecting via usb but ipad mini is only 2 days old and latest versions and it has wiped everything I have put on it - not happy with that result so now I have to reload apps and music library and photos - first time I have ever been upset with apple and I have purchased every product they have ever released!