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    From
    SubjectRe: 2.6.23-rcX SG_GET_SCSI_ID regression?
    Date
    Am Mittwoch, 3. Oktober 2007 schrieb Joerg Platte:
    Hi,

    > 2.6.22.8:
    > open("/dev/scanner", O_RDWR|O_NONBLOCK|O_EXCL) = 3
    > ioctl(3, SG_SET_TIMEOUT, 0xbfe40624) = 0
    > ioctl(3, SG_GET_VERSION_NUM, 0x8063fa4) = 0
    > ioctl(3, SG_GET_SCSI_ID, 0xbfe405e0) = 0
    >
    > 2.6.23-rc9:
    > open("/dev/scanner", O_RDWR|O_NONBLOCK|O_EXCL) = 3
    > ioctl(3, SG_SET_TIMEOUT, 0xbf84a834) = 0
    > ioctl(3, SG_GET_VERSION_NUM, 0x8062524) = 0
    > ioctl(3, SG_GET_SCSI_ID, 0xbf84a7f0) = -1 ENOTTY (Inappropriate ioctl
    > for device)

    After some reboots and tests I discovered, that this error occurs only when
    the scanner was turned off during system boot and was discovered later by
    invoking the following script:
    for device in /sys/class/scsi_host/host*/scan ; do
    echo "0 - -" > $device
    done
    With 2.6.22 and before the scanner was fully functional when discovered by a
    bus rescan.

    regards,
    Jörg

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