NIC driver skeleton for study. (GXemul/PSIM)

[kgardas at objectsecurity.com (Karel Gardas)]

Hello,

I'm thinking about writting as simple as possible NIC driver for RTEMS for 
simple emulated NIC. Something for ether-like device from GXemul:
http://gavare.se/gxemul/gxemul-stable/doc/experiments.html#expdevices -- 
scroll down and look for `ether'.

The NIC will be connected to TUN/TAP device, hence I need to get proper 
Ethernet's frames somewhere. Does TCPIP stack produce them automatically? 
If so, then such work should be relatively easy, but I'd like to study 
some as simple as possible NIC driver to get an idea what to do and where 
to start.

Thanks!
Karel
--
Karel Gardas                  kgardas at objectsecurity.com
ObjectSecurity Ltd.           http://www.objectsecurity.com