Re: Port of 3c575_cb to 2.3.43pre8

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 14 Feb 2000 13:04:58 +0000 (GMT)

> 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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