Date: Tue, 25 Jul 2006 12:54:49 +0200 From: "Julian H. Stacey" <jhs@flat.berklix.net> To: Ian Smith <smithi@nimnet.asn.au> Cc: "Douglas W. Goodall" <douglas_goodall@mac.com>, freebsd-mobile@freebsd.org Subject: Re: Doug's method for suppressing stray interrupt logging Message-ID: <200607251054.k6PAsnSD004602@fire.jhs.private> In-Reply-To: Message from Ian Smith <smithi@nimnet.asn.au> of "Tue, 25 Jul 2006 18:46:21 %2B1000." <Pine.BSF.3.96.1060725174148.953A-100000@gaia.nimnet.asn.au>
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Ian Smith wrote: > Hi Doug, > Hmm, perhaps I'm misremembering, but I was pretty sure the AT 2nd PIC > was connected to IRQ _2_ on the first, Yes. > thus elevating the priority of > irqs 8-15 above those of irq 3-7, generally (then at least) used for > slower devices like serial comms and lpt? Hence IRQ2/IRQ9 confusion? According to the back of my business card :-) http://berklix.com/~jhs/cv/#card High Pri.: 0, 1, 2, 8, 9, 10, 11, 12, 13, 14, 15, 3, 4, 5, 6, 7 Low Pri. Ref. page 53 of "Open Technologies Service Group" handbook ISBN 0-929392-36-1 otsgroup@knoware.nl IRQ 2 is fed by 2nd IRQ controller http://www.rtcbooks.com/internalpc.php -- Julian Stacey. Consultant Unix Net & Sys. Eng., Munich. http://berklix.com Mail in Ascii, HTML=spam. Ihr Rauch = mein allergischer Kopfschmerz.
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