+config USB_ETHER
+ bool "USB Ethernet Gadget"
+ help
+ Creates an Ethernet network device through a USB peripheral
+ controller. This will create a network interface on both the device
+ (U-Boot) and the host (remote device) that can be used just like any
+ other nework interface.
+ It will bind on the peripheral USB controller, ignoring the USB hosts
+ controllers in the system.
+
+if USB_ETHER
+
+choice
+ prompt "USB Ethernet Gadget Model"
+ default USB_ETH_RNDIS
+ help
+ There is several models (protocols) to implement Ethernet over USB
+ devices. The main ones are Microsoft's RNDIS and USB's CDC-Ethernet
+ (also called CDC-ECM). RNDIS is obviously compatible with Windows,
+ while CDC-ECM is not. Most other operating systems support both, so
+ if inter-operability is a concern, RNDIS is to be preferred.
+
+config USB_ETH_CDC
+ bool "CDC-ECM Protocol"
+ help
+ CDC (Communications Device Class) is the standard for Ethernet over
+ USB devices. While there's several alternatives, the most widely used
+ protocol is ECM (Ethernet Control Model). However, compatibility with
+ Windows is not that great.
+
+config USB_ETH_RNDIS
+ bool "RNDIS Protocol"
+ help
+ The RNDIS (Remote Network Driver Interface Specification) is a
+ Microsoft proprietary protocol to create an Ethernet device over USB.
+ Windows obviously supports it, as well as all the major operating
+ systems, so it's the best option for compatibility.