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


Alan Cox (alan@lxorguk.ukuu.org.uk)
Sun, 30 Aug 1998 22:48:33 +0100 (BST)


> The Amiga doesn't share many drivers. Parport is the only one where the
> high-level drivers are exposed to so many details of the hardware. The only
> place I can think of where there's an equivalent 3-layer structure is SCSI,
> and things are very different there.

SCSI drivers the low level driver handles the IRQ request

> Allowing parport_share to own the irq isn't much different to what we have now
> (aside from the switching details). I think that having the lowlevel driver
> in control is definitely the right way to go in the long term.

Definitely. Midlayer structures have always proved wrong in Linux, including
the current scsi mess. The stuff that works out is always not having a
"mid layer" but a "support library"

Alan

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