NICs not reconized - FreeBSD 4.9

[Augusto Castelan Carlson]

jason wrote:
>> What are the correct steps to install this realtek driver correctely? 
>> And the broadcom 5788, can I make it work on FreeBSD 4.9?
>>
>>
> Did the default driver in bsd not work?  I would not compile it in until 
> I found one that worked.  Just load and unload modules, it makes life 
> easy.  You could try to tweak the default driver to recgonize your card 
> and it may just work.  Since you downloaded the driver you could try 
> looking at the differences between the web and system drivers with diff, 
> it may be 95% the same.

I suppose that there is no default driver for these NICs, as they are 
not reconized during the system install.  I know that they work on 
FreeBSD 5.2.1, but the application that I'm intend to use only works on 
version 4.x.
About loading and unload modules, I have to do that using 
/boot/loader.conf or there is a command line to do it?

It's not dangerous to tweak the code? Can I damage the NIC?

Thanks,

Augusto