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

Andrea Arcangeli (
Mon, 31 Aug 1998 10:47:42 +0200 (CEST)

On Sun, 30 Aug 1998, Philip Blundell wrote:

>>No. _In_Linux_ 2.1.119 is the arch specific irq code that has to know
>>everything about the irq and to ack the irq when it will happen and _then_
>>to recall the irq handler. The device driver has not to know how to ack an
>>irq to the irq controller.
>Imagine a system where you have to acknowledge the irq explicitly by writing
>to the parallel port controller (or whatever the device is that's generating
>the interrupt). The irq.c code can't do this because it doesn't know the
>details of every device -- it doesn't even know _which_ device is generating
>the interrupt.

Ok, you convinced me for some other reasons too (now I have understood
better everything so reject my latest proposed patch). The new one will
allow the lowlevel parport driver to wrap the pardevice irq handler.

Andrea[s] Arcangeli

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