Re: [PARPORT] low performance

From: Tim Waugh (twaugh@redhat.com)
Date: Mon Jul 03 2000 - 04:59:55 EDT

  • Next message: Stephan Wefing: "Re: [PARPORT] low performance"

    On Mon, Jul 03, 2000 at 02:51:25AM +0200, Stephan Wefing wrote:

    > selected the ecp protocol for the parport

    Be aware that although the 2.2 kernel uses the ECP hardware to detect
    and report things like the IRQ and DMA channel, it doesn't use it for
    transfers.

    > i observed the same phenomenon with kernel 2.0.36 on the same box
    > and a lexmark k1220 attached to it.

    2.0 didn't use the ECP hardware at all.

    If you're looking to do data transfers to the printer using ECP mode,
    you'll need to use 2.4 really (and a small kernel hack or custom print
    filter).

    Tim.
    */



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