On my 10 II currently connect to a laptop:
devel-su find /dev -iname '*usb*'
/dev/at_usb1
/dev/at_usb0
/dev/usb_accessory
/dev/mtp_usb
/dev/usb-ffs
/dev/bus/usb
/dev/__properties__/u:object_r:vendor_usb_prop:s0
/dev/__properties__/u:object_r:vendor_usb_config_prop:s0
/dev/usbmon0