Thanks for All the Help

M. Warner Losh imp at
Fri May 28 18:37:33 PDT 2004

In message: <1085764038.485.71.camel at zircon>
            Joe Kelsey <joe at> writes:
: On Fri, 2004-05-28 at 08:01, M. Warner Losh wrote:
: > In message: <1085610184.3232.250.camel at zircon>
: >             Joe Kelsey <joe at> writes:
: > : Gee, I ask a seemingly simple question about connecting a very simple
: > : driver to the system and all of ZERO people chime in with help.
: > : 
: > : The only thing anyone had to say involved something like "Read and
: > : update isa_compat.h" and I can take it from there!  However, noone said
: > : that or anything else for that matter.
: > : 
: > : It really upsets me because it seems that absolutely *no* documentation
: > : exists for how to connect a driver to FreeBSD 4.x.  Documentation exists
: > : for 3.x and 5.x, but none for 4.x.
: > : 
: > : This mailing list just seems useless to me.
: > 
: > stable tends to be more user oriented, and less developer oriented.  I
: > read it less often than I do the other lists.
: > 
: > Maybe if you could send me your driver, I can point out the problems
: > in it.  Since you didn't provide any code, it really is hard to guess
: > what might be going wrong.  isa_compat.h almost certainly isn't the
: > answer, since that's only for drivers in a transition period from the
: > old APIs to the new ones.
: Thank you very much for the offer to help.  In fact, I "randomly" choose
: gpib.c and labpc.c as the structural models for my device driver, and so
: I ran into the problem of how do I hook this into the kernel.  The basic
: problem arises since I just want to diddle I/O addresses and none of the
: devices have interrupts associated with them, so it really does not need
: all of that horrid module stuff.  I just wanted to hook up a choice of
: base I/O address from the kernel config file.

OK.  I'll write up some stuff this weekend.


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