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Date:      Sun, 06 Aug 2000 23:49:18 -0600
From:      Warner Losh <imp@village.org>
To:        Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
Cc:        "Brandon D. Valentine" <bandix@looksharp.net>, Donn Miller <dmmiller@cvzoom.net>, current@FreeBSD.ORG
Subject:   Re: vga0, atkbdc0, fdc0 attaching to ISA bus? 
Message-ID:  <200008070549.XAA29774@harmony.village.org>
In-Reply-To: Your message of "Mon, 07 Aug 2000 14:51:30 %2B0900." <200008070551.OAA27378@zodiac.mech.utsunomiya-u.ac.jp> 
References:  <200008070551.OAA27378@zodiac.mech.utsunomiya-u.ac.jp>  <Pine.BSF.4.21.0008070132400.68579-100000@turtle.looksharp.net> 

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: >Well, I understand that, my question is, why are true PCI devices like
: >video controllers still shown as being on isa0 by the kernel?  

Yokota-san's answer is correct here, which I've not repeated.
however, atkbdc0 is a isa device as is fdc0.

For some drivers it is easier to hack a pci front end that kicks the
device into isa legacy mode.  video is one (since it must support
legacy things).  pcic is another, because writing a native cardbus
bridge code is a lot harder than writing a front end that kicks it
into compat mode.

but atakbdc and fdc, those really are isa devices.

Warner


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