Android phone not even charging on a Mac Mini (Yosemite) I'm new to OSX, so I'm probably doing something which is obviously wrong.

I have a Samsung Note and USB cable which when plugged into my Linux laptop work without any issues.

I have a late-2012 Mac Mini running Yosemite.

When I plug the phone into the Mac Mini's USB ports it does not even start charging.  I have tried three different USB ports, including ports I know are working (as I swapped the keyboard and mouse plugs).

What do I need to do for my Mac Mini to at least charge my Android Phone?
I have zero experience with Android, that said it may be that a driver or such (sync software for Mac?) might be needed for the Mac to 'recognize' the phone