Re: [PARPORT] Computer hangs when outb'ing to parport

From: Christian Reitwiessner (
Date: Tue Sep 30 2003 - 19:31:10 EDT

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    On Tue, Sep 30, 2003 at 09:47:11PM +0100, Alan Cox wrote:
    > On Maw, 2003-09-30 at 11:50, Christian Reitwiessner wrote:
    > > But both in kernel and in user mode, the computer hangs after some
    > > output to the ports (I have unloaded all other parallel port drivers,
    > > BTW). I both use the data and the control port, but the computer hangs
    > > also when i just use the data port.
    > Make sure you have the data and port the right way around, DOS and Linux
    > disagree on the outb() asm macro..

    Argl, I knew that they have a different argument order, but I thought it
    was correct, as i took it from another (external) kernel driver.
    Of course, the argument order was wrong ;-)

    Thanks for the Tip.

    Christian Reitwiessner
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