assigning interrupts

[Joerg Sonnenberger]

On Thu, Nov 13, 2008 at 02:40:54AM -0800, Jeremy Chadwick wrote:
> Otherwise, consider purchasing a motherboard that has an APIC (this is
> not a typo) increasing the IRQ count to 256.

This is wrong. The first IO-APIC gives you 8 additional interrupts to
the 16 ISA interrupt lines. Every additional IO-APIC gives you 24 more.
Most modern chipsets have one IO-APIC, at least for non-embedded
systems. It doesn't mean you don't get interrupt sharing though.

Joerg