RFC: i8259.c cleanup
msokolov at ivan.Harhan.ORG
Thu Nov 8 10:00:35 EST 2001
Geert Uytterhoeven <geert at linux-m68k.org> wrote:
> But because you have 2 cascaded i8259s it's more complex to poll both i8259s
> than to read the single magic interrupt acknowledge register.
True, an Interrupt Acknowledge cycle is more efficient than polling. I guess we
could make two versions of the 8259 code, one using the more efficient
Interrupt Acknowledge cycle and the other using polling for machines that don't
support interrupt acknowledge.
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