Date: Tue, 29 Jul 1997 01:36:43 -0400 (EDT) From: Chuck Robey <chuckr@glue.umd.edu> To: FreeBSD Development <freebsd@atipa.com> Cc: John Kelly <mouth@ibm.net>, hackers@FreeBSD.ORG, Terry Lambert <terry@lambert.org> Subject: Re: Sharing interrupts Message-ID: <Pine.BSF.3.96.970729013343.286D-100000@Journey2.mat.net> In-Reply-To: <Pine.BSF.3.91.970728211925.25478B-100000@dot.ishiboo.com>
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On Mon, 28 Jul 1997, FreeBSD Development wrote: > > > On Tue, 29 Jul 1997, John Kelly wrote: > > > On Mon, 28 Jul 1997 10:38:32 -0700 (MST), Terry Lambert wrote: > > > > > You can not share interrupts with ISA cards. Period. > > > You can share interrupts, but not use both SIMULTANEOUSLY. A very good > example would be to have LPT1: and a sound card on IRQ7 (both ISA). As > long as they have unique base addresses (0x378h and 0x220 for instance), > both devices can coexist. You just can't use them at the same time > without conflicting. Sharing IRQs is definitely not recommend, but I believe > your statement may require a bit more qualifying. You must be _very_ innocent. Terry is right on the money here. Go ahead, share your irq 7. Then you can join the large group of FreeBSDers who claim the printer driver's broken (it isn't). That's not fair, I'm too tired and shouldn't be so harsh, but really, Terry _is_ right here, there are strong hardware reasons that it's so. I'll let Terry respond, he seems to like typing more than I. > > Kevin > > > > ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@eng.umd.edu | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | I run Journey2 and picnic, both FreeBSD (301) 220-2114 | version 3.0 current -- and great FUN! ----------------------------+-----------------------------------------------
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