Date: Thu, 27 May 1999 08:30:02 -0700 (PDT) From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/11018: detection of sc0 and atkbd fails Message-ID: <199905271530.IAA21937@freefall.freebsd.org>
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The following reply was made to PR kern/11018; it has been noted by GNATS.
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
To: freebsd-gnats-submit@freebsd.org
Cc: yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: kern/11018: detection of sc0 and atkbd fails
Date: Fri, 28 May 1999 00:25:04 +0900
Are you sure that the system doesn't work without your suggested work
around?
Guessing from the error messages you described, I suspect that when
your initial custom kernel failed, it was compiled with the following
wrong declarations:
controller atkbdc0 at isa? port IO_KBD tty
device atkbd0 at isa? tty
[...]
device sc0 at isa? tty irq 1
"irq 1" should be associated with atkbd0 rather than sc0.
Your kernel configuration file attached to the problem report has
correct declarations:
controller atkbdc0 at isa? port IO_KBD tty
device atkbd0 at isa? tty irq 1
[...]
device sc0 at isa? tty
Therefore, I expect they should work...
Please compile a kernel without unecessary fe and ep devices and see
if atkbd and sc are recognized.
Kazu
yokota@FreeBSD.ORG
>detection of sc0 and atkbd fails
[...]
>Originator
> Walter Belgers walter@giga.mpn.cp.philips.com
>Release
> FreeBSD 3.1-RELEASE i386
>Organization
>
> Origin
>
>Environment
[...]
>Description
>
> When compiling a custom kernel, I get errors on sc0 and atkdb0, making
> the keyboard useless. I have no screendump, but errors I saw were
> sc0: irq with no handler
> and something like
> atkbd not probed due to irq conflict with sc0
>
>How-To-Repeat
>
> On my system, use this custom kernel config and boot the kernel:
[...]
> controller atkbdc0 at isa? port IO_KBD tty
> device atkbd0 at isa? tty irq 1
> device psm0 at isa? tty irq 12
> device vga0 at isa? port ? conflicts
> pseudo-device splash
> device sc0 at isa? tty
[...]
>Fix
> Actually, workaround.
>
> Add this to the kernel config:
> device ep0 at isa? port 0x300 net irq 10
> device fe0 at isa? port 0x300 net irq ?
>
> These get probed (but are not found) between sc0 and atkdb0. This fixes
> the problem (see dmesg output on top).
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