Re: Interrupts not being raised.

Lenart Gabor (lgb@oxygene.terra.vein.hu)
Fri, 12 Feb 1999 13:53:09 +0100

On Fri, Feb 12, 1999 at 12:31:48PM +0000, David Woodhouse wrote:
> Shouldn't that be 0x20 + (irq) ?

With reprogramming PICs we you map IRQs to the right places. As far as I know
these mappings are :

Under MSDOS (default BIOS setting) : 0x08..0x0F, 0x70..0x78 (this second intervall may not be correct, sorry ...)
Under Linux (reprogrammed PICs) : 0x20..0x27, 0x28..0x2F

(See /usr/src/linux/arch/i386/boot/setup.S)

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