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Date:      Sun, 26 Aug 2001 16:22:02 -0600
From:      Warner Losh <imp@harmony.village.org>
To:        tlambert2@mindspring.com
Cc:        Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>, current@freebsd.org
Subject:   Re: unknown PNP hardware 
Message-ID:  <200108262222.f7QMM3W13698@harmony.village.org>
In-Reply-To: Your message of "Sun, 26 Aug 2001 15:18:37 PDT." <3B8975BD.6A9846F2@mindspring.com> 
References:  <3B8975BD.6A9846F2@mindspring.com>  <3B896C75.6DCFE2E8@mindspring.com> <200108261112.UAA14768@zodiac.mech.utsunomiya-u.ac.jp> <20010823172813.A69940@leviathan.inethouston.net> <200108251636.f7PGabW05246@harmony.village.org> <200108261551.f7QFpvW11269@harmony.village.org> <200108261719.CAA15944@zodiac.mech.utsunomiya-u.ac.jp> <200108262207.f7QM7IW13551@harmony.village.org> 

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In message <3B8975BD.6A9846F2@mindspring.com> Terry Lambert writes:
: Warner Losh wrote:
: > Since that's not how it works, the solution is a non-starter.
: > 
: > We just need to carefully order the ISA code probing sections to get
: > the desired effects.  We haven't done that yet.  All PnP devices are
: > probed together at the end, which isn't quite right.
: 
: The problem was presented as "we are getting two entries for
: the devices: one for the PnP BIOS, one for the device.hints".

That's a useful high level abstraction of what's happening.  However,
it isn't completely accurate either.

: Whether it's perfect or not, making the device.hints "go away"
: in the presents of PnP BIOS on the machine would seem to be
: able to address the issue of doubled entries... right?

Not entirely.  There are ISA devices in devices.hints that aren't plug
and play and aren't in the PnP BIOS list.  That's a worse problem than
the minor printf :-).

: Is there something I'm not seeing here from Kazutaka's posting,
: or am I being misled?

Yes.  Yes. :-)

What we'd like to happen:

	PnP BIOS devices
	device.hints
	PnP ISA devices

What we do now

	device.hints
	PnP BIOS devices
	PnP ISA devices

Note, I tried making the simple changes to make this work, but it
failed in subtle ways that I didn't have time to trackdown...

Warner

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