Date: Mon, 07 Apr 2003 09:04:10 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: tlambert2@mindspring.com Cc: freebsd-current@freebsd.org Subject: Re: midi problem, an isa device on a pci card Message-ID: <20030407.090410.118304537.imp@bsdimp.com> In-Reply-To: <3E916024.9D7E77C6@mindspring.com> References: <20030407064749.GO17533@cnd.mcgill.ca> <20030407.011258.62370040.imp@bsdimp.com> <3E916024.9D7E77C6@mindspring.com>
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In message: <3E916024.9D7E77C6@mindspring.com>
Terry Lambert <tlambert2@mindspring.com> writes:
: I think this is what he means: yes, there's a PCI-ISA bridge on
: the card, with an ISA device hung off the ISA side of the bridge.
I doubt seriously this is the case. Otherwise our isa bridge code
would attach another isa bus there and he'd not have a problem.
: I remember that there were 1-ISA-device-PCI-ISA bridges when PCI
: first came out; this is probably one of them.
actually, there were and are a lot of localbus (aka ISA) to PCI
bridges out there. These are PCI devices, and should be treated as
such. It is extremely rare for a full-fledged PCI to ISA bridge to be
on an add-in card that isn't a specialized hunk of hardware.
Something as common as a sound card almost certainly doesn't do this.
That makes the rest of your questions irrelevant....
Warner
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