Re: [PARPORT] Re: L68K: Amiga-Parport-driver

Joerg Dorchain (
Mon, 31 Aug 1998 13:05:11 +0200 (MET DST)

> That' s the same on i386. Look at the function handle_IRQ_event() in
> arch/i386/kernel/irq.c. Before call handle_IRQ_event() the i386 port ack
> and _mask_ the irq.

Masking is done automatically in hardware (can be undone in software),
acknowledge? What device? what hardware? How? Where? You only know there
is an interrupt. You can check the know system hardware, and if it
doesnīt come from there, itīs unknown (to the arch irq-code) hardware,
i.e. a plug-in card, so call code that knows the card.


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