Messages in this thread | | | Subject | Re: Port of 3c575_cb to 2.3.43pre8 | Date | Mon, 14 Feb 2000 13:04:58 +0000 (GMT) | From | Alan Cox <> |
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> IRQ7 has always been connected to the printer port. The interrupt > controller handles it just like all the other PWB traces going > to it. It is not an "unknown" interrupt.
IRQ7 is also raised to indicate a spurious interrupt (ie nobody owning up to having requested it). That is one reason its used for the parallel port on a PC - the odd extra irq does no harm
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