Date: Fri, 19 Jul 2013 17:52:59 +0200 From: keramida@ceid.upatras.gr (Giorgos Keramidas) To: Michel Behr <michelbehr@gmail.com> Cc: questions@freebsd.org Subject: Re: Bill Paul's network drivers Message-ID: <67um8rd2qer1gk.fsf@saturn.laptop> In-Reply-To: <CACKN2%2Bwan-L-aq-44p4etEaa3ceNHFgUoXkw8oz2xuVK1nFgww@mail.gmail.com> (Michel Behr's message of "Wed, 17 Jul 2013 13:28:39 -0300") References: <CACKN2%2Bwan-L-aq-44p4etEaa3ceNHFgUoXkw8oz2xuVK1nFgww@mail.gmail.com>
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On Wed, 17 Jul 2013 13:28:39 -0300, Michel Behr <michelbehr@gmail.com> wrote:
> Hi
>
> I'm considering learning how to build drivers, so I can make my Lenovo S400
> wireless card get detected by FreeBSD.
>
> The Architecture Handbook cites these "Bill Paul's network drivers".
>
> 9.5 Network Drivers: Drivers for network devices do not use device nodes in
> order to be accessed. Their selection is based on other decisions made
> inside the kernel and instead of calling open(), use of a network device is
> generally introduced by using the system call socket(2).
>
> For more information see ifnet(9), the source of the loopback device, and
> Bill Paul's network drivers.
>
> Where can I find those Bill Paul's network drivers?
All network drivers are part of the kernel sources. You should have
them in your /usr/src/sys directory.
Having said that, the networking stack is a large piece of software,
with many parts and interactions between them. If you are planning to
get into that sort of development, you should probably consider reading
a _book_ about how things work.
Two excellent books about drivers and networking are:
"FreeBSD Device Drivers"
by Joseph Kong (Stark Press)
"The Design and Implementation of the FreeBSD Operating System"
by Marshall Kirk Mc Kusick & George V. Neville-Neil
(Addison-Wesley)
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