He's got a Renesas uPD720200a, so that's not going to do anything. This chip is rejected by AppleUSBXHCI.
Your screendumps show that you get extra current with AppleUSBXHCI, because the iPad is in fact connected to the EHCI chip on your system. I mentioned in post #134 that you can get the same result by using GenericUSBXHCI with kernel flag '-gux_defer_usb2'. With Intel Series 7, USB2 ports 1-4 can be routed to either XHCI or EHCI.
So as far as I understand all usb ports on my motherboard (2 USB2.0 Intel, 2 USB3.0 Intel, 2 USB3.0 ASMedia - 6 total) routs it's USB2.0 devices to Intel EHCI chip (even in ASMedia port) that (with IOProbeScore -1) controlled by AppleUSBEHCI, correct?
And even if System Information -> USB -> Host Controller Driver says GenericUSBXHCI in fact iPad at ASMedia port really routed to Intel EHCI chip and controlled via AppleUSBEHCI driver, so extra current works in any port.
With IOProbeScore 1 all ports routs to XHCI(intel chip for intel ports, asmedia chip for asmedia ports)/EHCI chip and controlled only via GenericUSBXHCI with no extra current
Am I correct? Please correct me if I'm wrong.