freebsd stable - Jun 2005 - atkbd: changing flags at boot time

[This is with FreeBSD 4.11-RELEASE]

I would like to arrange that the ATA keyboard works even if the machine is 
booted without a keyboard, but one is subsequently plugged in. My 
understanding is that the default behaviour of probing for the keyboard is 
set here in the kernel configuration:

device          atkbd0  at atkbdc? irq 1 flags 0x1
                                               ^^^
# `flags' for atkbd:
#       0x01    Force detection of keyboard, else we always assume a keyboard

So I tried putting
   hint.atkbd.0.flags="0x00"
in /boot/loader.conf, but that didn't make any difference.

Looking at sys/dev/kbd/atkbd.c, I see:

        /* XXX: a kludge to obtain the device configuration flags */
        if (resource_int_value("atkbd", ATKBD_DEFAULT,
"flags", &i) == 0)
                flags |= i;

Does this mean that it's impossible to clear this flag without recompiling
the
kernel? If so, is there a reason for this?

TIA,

Brian.

set in /boot/device.hints

hint.atkbd.0.flags="0x0"


[]?s

JP-Ux

----- Original Message ----- 
From: "Brian Candler" <B.Candler@pobox.com>
To: <freebsd-stable@freebsd.org>
Sent: Monday, June 27, 2005 9:38 AM
Subject: atkbd: changing flags at boot time

> [This is with FreeBSD 4.11-RELEASE]
>
> I would like to arrange that the ATA keyboard works even if the machine is
> booted without a keyboard, but one is subsequently plugged in. My
> understanding is that the default behaviour of probing for the keyboard is
> set here in the kernel configuration:
>
> device          atkbd0  at atkbdc? irq 1 flags 0x1
>                                               ^^^
> # `flags' for atkbd:
> #       0x01    Force detection of keyboard, else we always assume a 
> keyboard
>
> So I tried putting
>   hint.atkbd.0.flags="0x00"
> in /boot/loader.conf, but that didn't make any difference.
>
> Looking at sys/dev/kbd/atkbd.c, I see:
>
>        /* XXX: a kludge to obtain the device configuration flags */
>        if (resource_int_value("atkbd", ATKBD_DEFAULT,
"flags", &i) == 0)
>                flags |= i;
>
> Does this mean that it's impossible to clear this flag without
recompiling
> the
> kernel? If so, is there a reason for this?
>
> TIA,
>
> Brian.
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> set in /boot/device.hints
> 
> hint.atkbd.0.flags="0x0"
I tried that, and it didn't work. Well actually I put the setting 
in /boot/loader.conf rather than /boot/device.hints, but AFAICT they are the 
same:

$ cd /usr/src/sys/boot
$ find . -type f | xargs grep device.hints 
./forth/loader.conf:loader_conf_files="/boot/device.hints /boot/loader.conf
/boot/loader.conf.local /boot/nextboot.conf"

Or am I incorrect in saying that this setting can go in /boot/loader.conf ?