Messages in this thread |  | | Subject | Re: IRQ 2,9 | Date | Wed, 12 Feb 1997 12:01:48 +0000 | From | ". Tethys " SYSTEM ADMIN " X" <> |
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>> So, is there a reason why this information is incomplete (as at 2.0.27 >> on x86 -- I haven't checked since then)? > >Well, for the serial ports (yawn! have we got to say this again), >the interrupt isn't reserved unless the serial port is in use. >The driver won't grab irq 4 or 3 (or whatever) until it needs it. >That's a design feature, not a bug. > >By default, the parallel printer driver doesn't use interrupts, >so it won't grab irq 7 or 5 (or whatever) unless you > > a) load the lp driver - if its a module > and > b) tell it to use interrupts > >That's another design feature, not a bug.
Sounds OK, but given that it's a multi-boot machine, I can't assign anything to those interrupts, as that would cause a conflict under the crap from Redmond. It would be handy to know what the IRQ settings are on a card, even if it's not currently being used by linux. Thus, /proc/interrupts might say something like:
[...] 5 WD-8003 7 parallel port (unused) [...]
Is this even possible? (the cards in question are mostly old ISA non-PnP, with jumper settings for IRQ/base address).
Tet
-- ``Anyone who cannot cope with mathematics is not fully human. He is at best a tolerable subhuman who has learned to wear shoes, bathe and not make messes in the house.'' -- from the notebooks of Lazarus Long --------------------+--------------+---------------------------------------- tethys@ml.com | Micro$oft: | Linux, the choice of a GNU generation. tet@astradyne.co.uk | Just say no! | See http://www.uk.linux.org for details
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