Re: [PARPORT] Parport device problems

From: David Lambert (
Date: Mon Apr 09 2001 - 07:20:15 EDT

  • Next message: Tim Waugh: "Re: [PARPORT] Parport device problems"

            Thanks for your reply. I am trying to develop a user space driver for a data
    aquisition controller I have developed. I only used 'cat' to illustrate my
    problem. My open("/dev/parport0", O_RDWR) statement in my user space driver
    returns the same error 'no such device'.


    On Monday 09 April 2001 01:23, you wrote:
    > On Sun, Apr 08, 2001 at 08:46:39PM -0500, David Lambert wrote:
    > > If I load the lp driver, it appears to work OK but I still cannot access
    > > /dev/parport0. Any ideas of what I am doing wrong?
    > /dev/parport0 isn't what you think it is. /dev/lp0 is something you
    > can cat to, /dev/parport0 is for user-space drivers.
    > Load the lp module, and use /dev/lp0.
    > Tim.
    > */

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