Re: [PARPORT] Kernel 2.4.2 & Epat Shuttle HDD driver

From: Tim Waugh (
Date: Wed May 30 2001 - 10:01:37 EDT

  • Next message: Tim Waugh: "[PARPORT] libieee1284"

    On Tue, Mar 27, 2001 at 08:38:25AM +0100, Miroslav BENES wrote:

    > I thought that printing support (lp module) are running in pooled
    > mode and is NOT using irq, while data transfer protocols USES irq.
    > but in /proc/interrupts is :
    > CPU0
    > ....
    > 7: 3 XT-PIC parport0
    > after copying cca 20 MB. Why ?

    By default, we don't use interrupts in case other devices think that
    we're trampling on _their_ interrupt lines. ISA sound cards in
    particular do this kind of thing to parallel ports.

    > Q3) How can I use two hdd simultaneously ? When I use epat shuttle as
    > additional device and this drivers are compiled as modules, I must
    > set pd options as :
    > options pd drive0=0x378,,,5,,,,0 drive1=0x378,,,5,,,,1
    > But when I want use pda disk as root device, I must compile this
    > drivers into kernel (and boot from flopy). In this case I cannoot use
    > secondary disk (pdb device). Which kernel parameters can solve it ?

    Use pd.drive0=... pd.drive1=... if it's built into the kernel.


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