Date: Mon, 12 Jul 1999 12:28:58 +0930 From: Greg Lehey <grog@lemis.com> To: Anthony Wyatt <Anthony.Wyatt@its.csiro.au> Cc: FreeBSD Hackers <hackers@freebsd.org> Subject: Re: Kernel Drivers Message-ID: <19990712122858.A21403@freebie.lemis.com> In-Reply-To: <F232EAD3304FD211BD3C00A0C99AFA9F014DB7F4@hermes.la.csiro.au>; from Wyatt, Anthony on Mon, Jul 12, 1999 at 12:44:18PM %2B1000 References: <F232EAD3304FD211BD3C00A0C99AFA9F014DB7F4@hermes.la.csiro.au>
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[redirecting to -hackers]
On Monday, 12 July 1999 at 12:44:18 +1000, Anthony Wyatt wrote:
> Hi,
> I really don't know where to post this message, so if there is a better
> place please let me know.
Well, to quote the frequent posting to this newsgroup,
If the question is of a general nature, ... ask
FreeBSD-questions. Examples might be questions about installing
FreeBSD or the use of a particular UNIX utility.
If the question relates to enhancements to FreeBSD, and you can
make suggestions about how to implement them, then send the
message to FreeBSD-hackers.
If the question is of particularly technical nature, such as
implementation details or suggestions for improvements, then send
the message to FreeBSD-hackers.
I think this qualifies as one of the last two, so -hackers is the place.
> I want to write a driver for my video card, not for X, for my own home
> grown app :-)
>
> I've just read Chap 5 of the Magic Garden Explained (SysVR4 Internals) so
> I have some idea whats expected when writing a device driver.
As you say, the Magic Garden is for System V. BSD is a little
different, though not too much.
> I've also read the technical programming doco for my video card.
> The big hole in my plan is PCI. I don't know how to talk to my
> video card on the PCI bus :-(
>
> So I guess my questions are:
> Should I try and find out more about basic driver programming,
> specifically freeBSD,
Yes.
> and if so where?
UTSL. And -hackers. There's some stuff in section 9 of the manual,
but it's not quite the level of completeness you'd find in the ddi/ddk
docco.
> Where can I find out about programming PCI devices?
UTSL. And -hackers. In particular, the PCI drivers are in
/usr/src/sys/pci.
Greg
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