Subject: Re: AHA-2842 and EISA config stuff
To: Justin T. Gibbs <gibbs@freefall.freebsd.org>
From: Chris G Demetriou <Chris_G_Demetriou@UX2.SP.CS.CMU.EDU>
List: port-i386
Date: 03/21/1996 11:00:34
> >The existance of an EISA config file does *not* indicate that it's an
> >EISA device.  You can find EISA config files for quite a variety of
> >ISA devices; they mainly exist as a repository of info about jumpers
> >and whatnot.
> 
> The 3c509 actually shows up in slot space when in eisa configuration mode.
> The only way you know that its not an EISA device from eisaconf is by
> having the driver tell you when it matches the ID.  Your statement
> above is generally correct, but the 3c509 is an exception.

Again, "show up as an EISA device != an EISA device."

One of the hallmarks of an EISA device is that, because of them there
extra pins, it's not going to work in an ISA motherboard.  As far as i
know, that's not true of the '509.  It may configure as an EISA
device, but that doesn't make it an EISA device.

That is, unless you're going to take the tack that "all ISA devices
are EISA devices," but that's quite a waste...



cgd