there are number of articles out there, like this one: http://www.ti.com/lit/wp/slly017/slly017.pdf
But I'm not super confident in my abilities here so I'm wondering if someone could proof my schematic to make sure it's going to work. Will this schematic work (simply connecting d+ and d- to the microcontroller (samd21) d+ and d- pins and cc1/cc2 to the usbhost pin?
I should explain the reason: I want to be able to not look at the usb when I plug it in, usb-c is a better user experience but I don't need the speed or other things, just the reversible plug and I want it to conform to what is quickly becoming the new standard.
Another link showing the method of adapting usb-c to usb-a: Wiring diagram for USB-C to USB-A cable? As comments have indicated, you can't simply emulate usb2.0 otg with a pull down resister.