Re: Re-2: [PARPORT] Parallel Port Mode switching via normal C-code possible??

From: Uwe Bonnes (
Date: Fri Mar 08 2002 - 07:46:32 EST

  • Next message: Gunther Mayer: "Re: Re-2: [PARPORT] Parallel Port Mode switching via normal C-code possible??"

    >>>>> "sven" == sven luebke <> writes:

        sven> Sorry, it's not for a Linux driver. Just MS-DOS environment... I
        sven> know, I'm in the wrong mailinglist, but I didn't find a MS-DOS
        sven> parallel port "discussion board"...
    If you are in DOS, maybe there are some BIOS Interrupts that could do that
    in a transparent way. ACPI comes also to mind, but probably will work, if
    ever, on only recent MBs.
    Otherwise, in DOS, you may also write directly to the Super-I/O controller,
    without the need for a driver. If however you want a solution that should
    work with many Super-I/O chips, you have to get their datasheets and/or
    programming manual and have to implement code that identies the chip and the
    switching with the appropriate sequence of cookies. Tedious works...

    I know of some work for the Linux kernel to identify the Super-IO chip.

    I only teste the smcio code on one mainboard.


    Uwe Bonnes      

    Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

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