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    SubjectRe: New resources - pls, explain :-(
    On Mon, 9 Aug 1999, Linus Torvalds wrote:
    > I'm talking to the ISA PnP guy, and we'll try to get rid of "struct
    > pci_dev" completely - because most of the issues with PCI have similar
    > equivalents in ISA PnP. So there would be a "struct device" (except the
    > name has already been stolen by the networking layer, so..), which can ge
    > used in generic PC drivers, and then the only difference between PCI and
    > ISA PnP is going to be which function you use to find the device, and
    > which function you use to initialize it.
    >
    > In short, this is not about just PCI. There are certainly many cases where
    > the same driver has PCI, ISA PnP, and old ISA interfaces - and the
    > _driver_ is often exactly the same with just small differences in how
    > cards are found and initialized.

    And differences in how they are accessed. This may depend on the bus type the
    `device' is tied to.

    Remember, readl() and friends are to be used for PCI mapped memory only! If you
    want to generalize, accesses have to be done through e.g. device->readl().

    Greetings,

    Geert

    --
    Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be
    Wavelets, Linux/{m68k~Amiga,PPC~CHRP} http://www.cs.kuleuven.ac.be/~geert/
    Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium


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