Re: [PARPORT] Patch: Parport Winbond detection and misc (2.3.46)

From: Tim Waugh (
Date: Tue Feb 22 2000 - 16:42:54 EST

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    On Tue, 22 Feb 2000, Gunther Mayer wrote:

    > Of course, I just considered poking at these ports (0x3f0, 0x2e,...)
    > too agressive to make it standard.

    Hmm. Maybe it is.

    > The next version will detect some SMSC chips too; this shows linux
    > doesn`t detect EPP-mode on37c669 when operated as "ECP+EPP" (it is
    > detected correctly when set to "EPP" in the BIOS).

    Some ECP+EPP chips are buggy -- I think they can even cause system hangs.
    We do a bug check so perhaps it's failing that.

    > > I don't think this is really necessary -- it's already available in /proc
    > > anyway. I quite like the pretty printing.
    > It`s just the pretty-printed Device ID in
    > /proc/sys/dev/parport/parport0/autoprobe !

    It's only some of the fields, yes. (And yes, it will make them up
    sometimes.) Perhaps we ought to change that, and store the actual Device
    ID rather than just bits.

    There also the deviceid program I wrote which can fetch a Device ID from


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