I have a Raspberry Pi Zero that has the Gadget Zero module installed, it shows up just fine on my Windows 10 computer and I was able to install libUSB drivers for it just fine. My problem is that every time I try to use libUSB to send the eight bytes "0001020304050607" and read it back the IN endpoint always returns saying it's not found. I'm using endpoints 0x01 and 0x81. When I try to use the setConfiguration method it's always an illegal parameter as well. Does anyone have a good simple example for using Gadget Zero with libUSB?