Re: [PARPORT] ppdev hangs on read

From: Tim Waugh (twaugh@redhat.com)
Date: Thu Oct 17 2002 - 04:45:02 EDT

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    On Wed, Oct 16, 2002 at 08:00:23AM +0200, stef wrote:

    > In fact I have:
    > +----------+--------------------+-------------------+
    > | | EPP IN BIOS | ECP/EPP IN BIOS |
    > +----------+--------------------+-------------------+
    > | 2.4.18 | OK | OK |
    > +----------+--------------------+-------------------+
    > | >2.4.18 | hangs | OK |
    > +----------+--------------------+-------------------+

    Okay. So here is the difference between 'OK' and 'hangs' just
    incrementing the kernel version:

    > dmesg output for parport 2.4.19-pre7, EPP in BIOS:
    >
    > parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE,EPP]
    > lp0: using parport0 (interrupt-driven).

    > dmesg output for parport 2.4.18, EPP in BIOS:
    >
    > parport0: PC-style at 0x378 [PCSPP,TRISTATE,EPP]
    > lp0: using parport0 (polling).

    What parameters are you passing the parport_pc module when it loads?
    What about from /etc/modules.conf? Try using 'irq=none' and see what
    difference that makes.

    Thanks,
    Tim.
    */


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