[PARPORT] Backpack CD no longer working

From: jhf@rivenstone.net
Date: Tue Jul 24 2001 - 17:01:44 EDT

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        My backpack CD drive no longer works with new versions of the linux
    kernel -- I've tried 2.4.2 and 2.4.7. The last kernel version I know to
    work was 2.4.0-test10.

        I've tested the drive on a windows machine and the parallel port by
    printing.

        When I try to load the pcd module, it says that "Autoprobe failed." The
    relevant messages from dmesg are:

    0x378: FIFO is 15 bytes
    0x378: writeIntrThreshold is 7
    0x378: readIntrThreshold is 8
    0x378: Unsupported pword size!
    0x378: PWord is 16 bits
    0x378: Interrupts are ISA-Pulses
    0x378: ECP port cfgA=0x0f cfgB=0x4d
    0x378: ECP settings irq=7 dma=5
    parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
    parport0: irq 7 detected
    parport0: cpp_daisy: aa5500ff(38)
    parport0: assign_addrs: aa5500ff(38)
    parport0: cpp_daisy: aa5500ff(38)
    parport0: assign_addrs: aa5500ff(38)
    paride: version 1.06 installed (parport)
    paride: bpck registered as protocol 0
    pcd: pcd version 1.07, major 46, nice 0
    0x378: FIFO is 15 bytes
    0x378: writeIntrThreshold is 7
    0x378: readIntrThreshold is 8
    0x378: Unsupported pword size!
    0x378: PWord is 16 bits
    0x378: Interrupts are ISA-Pulses
    0x378: ECP port cfgA=0x0f cfgB=0x4d
    0x378: ECP settings irq=7 dma=5
    parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
    parport0: irq 7 detected
    parport0: cpp_daisy: aa5500ff(38)
    parport0: assign_addrs: aa5500ff(38)
    parport0: cpp_daisy: aa5500ff(38)
    parport0: assign_addrs: aa5500ff(38)
    pcd0: Autoprobe failed
    pcd: No CD-ROM drive found
    Uniform CD-ROM driver unloaded

        I recall that I got the "unsupported pword size" message under -test10
    as well, but the drive worked then.

        This is more a heads-up than anything else, I guess; I go on vacation
    friday, and won't need the machine anytime soon after that. This bug report
    is probably only useful if the problem is immediately obvious. 

    --
Joseph Fannin
jhf@rivenstone.net

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