This driver supports several kinds of network links over USB,
with "minidrivers" built around a common network driver core
that supports deep queues for efficient transfers. (This gives
better performance with small packets and at high speeds).

The USB host runs "usbnet", and the other end of the link might be:

- Another USB host, when using USB "network" or "data transfer"
cables. These are often used to network laptops to PCs, like
"Laplink" parallel cables or some motherboards. These rely
on specialized chips from many suppliers.

- An intelligent USB gadget, perhaps embedding a Linux system.
These include PDAs running Linux (iPaq, Yopy, Zaurus, and
others), and devices that interoperate using the standard
CDC-Ethernet specification (including many cable modems).

- Network adapter hardware (like those for 10/100 Ethernet) which
uses this driver framework.

The link will appear with a name like "usb0", when the link is
a two-node link, or "eth0" for most CDC-Ethernet devices. Those
two-node links are most easily managed with Ethernet Bridging
(CONFIG_BRIDGE) instead of routing.

For more information see <http://www.linux-usb.org/usbnet/>.

To compile this driver as a module, choose M here: the
module will be called usbnet.

source code:

drivers/net/usb/usbnet.c