Re: [PARPORT] Example Code

From: Tim Waugh (
Date: Wed Mar 28 2001 - 16:38:33 EST

  • Next message: Tim Waugh: "[PARPORT] [patch] Via SIO parameters"

    On Wed, Mar 28, 2001 at 04:25:40PM -0500, Andrew Hogue wrote:

    > Why would this be the case? Is there something that needs to be done
    > before trying to open the /dev/parport0 in order to let my program access
    > this file?

    Yes, you need to load the ppdev module.

    > Also I would really like to use the outb() and inb() functions since I
    > need to set certain pins according to the protocol of my device, is there
    > a way to do this with the ppdev interface?

    Yes, with ioctls. Use PPWCONTROL to set control pins and PPWDATA to
    set the data pins.


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