Re: [PARPORT] Date: Fri, 3 Mar 2000 14:29:00 -0800

From: Tim Waugh (
Date: Mon Mar 06 2000 - 06:14:00 EST

  • Next message: Tim Waugh: "Re: [PARPORT] EPAT and newer 2.3.4x kernels..."

    On Fri, 3 Mar 2000, Chandan Mishra wrote:

    > insmod parport_pc dma=auto

    It won't use the DMA unless it's allowed to use the IRQ as well (use

    > I am enclosing the program with this email. With ths program I am
    > getting very slow speeds something in order of 50KBPS. If I use
    > compatibily mode instead of ECP I get speeds upto 340KBPS. I dont know
    > how to enable DMA for ECP mode. I have tried giving dma=1 parameter
    > instead of dma=auto but it didnt help. Can somebody give me any clue.

    The dma parameter is the DMA channel to use, not an on-off value. Does
    your port use DMA channel 1?

    > Also another thing whenever I try, irq=auto option, I am unable to write in
    > ECP mode and dmesg log shows up following.

    Hmm. It looks like a configuration problem to me. What does 'dmesg' say?


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