Re: [PARPORT] Problem with parport detection

From: Tim Waugh (twaugh@redhat.com)
Date: Tue Apr 10 2001 - 05:48:08 EDT

  • Next message: Aditya Mittal: "[PARPORT] simple driver"

    On Tue, Apr 10, 2001 at 01:12:04AM -0700, Shane Wegner wrote:

    > That is the parport_pc code seems to detect the port
    > differently depending on its mood. It's a modern parallel

    Rather, depending on where it's being told to look.

    > Apr 9 15:52:23 continuum kernel: parport0: PC-style at
    > 0x378 (0x778) [SPP,ECP,ECPEPP,ECPPS2]

    This port is at 0x378.

    > Apr 10 00:34:11 continuum kernel: 0x278: CTR: wrote 0x0c,
    > read 0xff
    > Apr 10 00:34:11 continuum kernel: 0x278: DATA: wrote 0xaa,
    > read 0xff
    > Apr 10 00:34:11 continuum kernel: parport0: PC-style at
    > 0x278 [SPP,PS2]

    This (non-existent) port is at 0x278.

    You're telling it to look at 0x278 for a port, but there isn't one
    there. Solution: don't. ;-)

    Tim.
    */



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