check out /usr/share.examples/drivers/psuedo[mumble]
this is a shellscript that writes a dummy driver, and even links it into
the kernel and compile sit for you..
edit to taste..
(I haven't run it for 6 months so it may need a few slight cleanups to
work on a new system)
julian
On Wed, 10 Mar 1999, Wayne Cuddy wrote:
>
>
> I have been reading any information I can find, which is very little, on
> writing unix device drivers. Specifically I would like information on
> FreeBSD;)
>
> I really want to start simple by writing a character driver that is not
> attached to a REAL device but just holds on to some memory and allows me to
> writing some bytes in (write()) and read them back (read()).
>
> I don't think this will be very difficult but I need some detailed information
> specific to FreeBDS on what header files I need to include and how to build my
> driver as part of the kernel. What directory should I build my driver in?
> What entry point will the kernel call when the system boots so I can print a
> pretty little string from my driver showing a sample initialization.
>
>
> I am kinda in the dark here to specifics of this so ALL help is greatly
> appreciated.
>
> Thanks,
> Wayne
>
>
>
>
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