how to install the ethernet device driver

[liang.zhu@philips.com]

Hi,
My ethernet device driver couldn't work after I installed the RT-liux due to
the version problem.  Someone suggest that I should recompile the device
driver.  Could you please kindly give me more detailed info on this, i.e.,
where I could got the source file (I guess it's under
/usr/src/linux/drivers/net/...) and then HOW I can proceed to compile it and
then HOW to install it?  Thanks.
Liang