Date: Wed, 10 Jan 1996 14:35:00 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: smpatel@wam.umd.edu (Sujal Patel) Cc: hasty@rah.star-gate.com, freebsd-hackers@FreeBSD.org, kashmir@umiacs.umd.edu Subject: Re: PnP Proposal, Ideas & Issues [Was: PnP problem...] Message-ID: <199601102135.OAA15484@phaeton.artisoft.com> In-Reply-To: <Pine.BSF.3.91.960109230505.4046I-100000@sl-022.sl.cybercomm.net> from "Sujal Patel" at Jan 9, 96 11:36:40 pm
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> So the first goal was to be able to specify certain resources that a PnP > card should use: > > I was hoping that we could strive for something along of the lines of: > device sio2 at isa? pnp "SUP1310" port "IO_COM3" tty irq 15 vector siointr > > This would be nice and simple-- Say that PnP device "SUP1310" is handled > by driver sio2 and configure the card and the driver for port 0x3e8 and > irq 15. But unfortunately, the solution is not going to nearly this > simple. Cards like the GUS PnP and other multi-function cards cannot be > configured like this at all. This is probably a bad approach. The idea of PnP is that the devices will fit into an unused space. This is a difficult (and potentially insoluable without a hack job) problem for non-PnP ISA devices in a standard ISA bus, since if you can't probe them, you can't predict what the conflicts would be. > I'm sure that we're gonna always need some kind of manual configuration > of PnP devices (for those really though cards like the GUS). The > majority of PnP cards should be very simple to configure (and could > be done automatically at boot-time). The problem is that it seems VERY > difficult to determine exactly what resources are going to be used when > the system is booting. I think you'd need manual configuration of unprobeable hardware to set up the intersects for it. Other than that, I don't think you *really* have to manually config the cards. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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