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Date:      Mon, 22 Jan 2001 16:24:07 -0600
From:      "Steve Shoecraft" <sshoecraft@safepages.com>
To:        "'Nicolas Souchu'" <nsouch@alcove.fr>
Cc:        "'John Baldwin'" <jhb@FreeBSD.org>, "'Donald J . Maddox'" <dmaddox@sc.rr.com>, <freebsd-hackers@FreeBSD.org>
Subject:   RE: more info about: odd result of pci_read_config
Message-ID:  <000001c084c2$09e1f8e0$26cadacf@max.home.org>
In-Reply-To: <20010122174822.D30873@ontario.alcove-int>

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[-- Attachment #1 --]


> -----Original Message-----
> From: owner-freebsd-hackers@FreeBSD.ORG
> [mailto:owner-freebsd-hackers@FreeBSD.ORG]On Behalf Of Nicolas Souchu
> Sent: Monday, January 22, 2001 10:48 AM
> To: Steve Shoecraft
> Cc: 'John Baldwin'; 'Donald J . Maddox'; freebsd-hackers@FreeBSD.org
> Subject: Re: more info about: odd result of pci_read_config
>
>
> On Mon, Jan 22, 2001 at 04:05:31AM -0600, Steve Shoecraft wrote:
> > > My viapm driver is a kmodule. Could it be that
> PCI_READ_CONFIG is not
> > > correctly resolved and returns ENXIO which is 0x6?
> >
> > That's exactly whats going on here.  Have you turned on
> BUS_DEBUG (or mebbe
> > DEBUG_BUS) in /kern/subr_bus.c ?
>
> Not yet. I will then.
>
> >
> > Also, I have a userland app that loads and runs your kernel
> module - it
> > makes it alot easier to debug this kinda stuff.  Even does
> device file I/O.
> > If you want, you can check it out.
>
> Thanks, where?
>

	I've included it as an attachment (very small -- only 14k).

	I forgot to add in the readme file you need to create the test device:

		cd /dev
		mknod test0 c 252 0

	Once you get it running, you can enable the output of the newbus debug code
by editing mod/test_bus.c and setting DEBUG to 1.  You'll have to re-install
testmod before your changes will take effect (the testmod program loads
testmod.ko from /modules).

- Steve

> --
> Nicolas.Souchu@alcove.fr
> Alcve - Open Source Software Engineer - http://www.alcove.fr
>
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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>

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