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SCSI_PASS_THROUGH

OSR_Community_UserOSR_Community_User Member Posts: 110,217
in NTDEV
Q1: Does SCSI_PASS_THROUGH still work under Win2000?

If yes, why does this initial INQ cmd (after successfully opening
'scsi2:') fail with INCORRECT_FUNCTION?

// prepare SPTI for Inquiry command
psptdwb->sptd.Length = sizeof(SCSI_PASS_THROUGH_DIRECT);
psptdwb->sptd.PathId = 0;
psptdwb->sptd.CdbLength = CDB6GENERIC_LENGTH;
psptdwb->sptd.SenseInfoLength = 32;
psptdwb->sptd.DataIn = SCSI_IOCTL_DATA_IN;
psptdwb->sptd.DataTransferLength = sizeof(InqData);
psptdwb->sptd.TimeOutValue = 2;
psptdwb->sptd.DataBuffer = InqData;
psptdwb->sptd.SenseInfoOffset = offsetof
(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, ucSenseBuf);
ZeroMemory(&psptdwb->sptd.Cdb[0], 16);
psptdwb->sptd.Cdb[0] = 0x12;
psptdwb->sptd.Cdb[1] = psptdwb->sptd.Lun << 5;
psptdwb->sptd.Cdb[4] = sizeof(InqData);

length = sizeof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER);
status = DeviceIoControl(
fileHandle,
IOCTL_SCSI_PASS_THROUGH_DIRECT,
psptdwb,
length,
psptdwb,
length,
&returned,
FALSE
);

>>> FAILS WITH INCORRECT FUNCTION - ???

Bill Casey
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Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    The difference is in access flags when opening a scsi port.

    ----------
    ??: Bill Casey[SMTP:[email protected]]
    ?????: NT Developers Interest List
    ??????????: 26 ??? 2000 ?. 21:09
    ????: NT Developers Interest List
    ????: [ntdev] SCSI_PASS_THROUGH

    Q1: Does SCSI_PASS_THROUGH still work under Win2000?

    If yes, why does this initial INQ cmd (after successfully opening
    'scsi2:') fail with INCORRECT_FUNCTION?

    // prepare SPTI for Inquiry command
    psptdwb->sptd.Length = sizeof(SCSI_PASS_THROUGH_DIRECT);
    psptdwb->sptd.PathId = 0;
    psptdwb->sptd.CdbLength = CDB6GENERIC_LENGTH;
    psptdwb->sptd.SenseInfoLength = 32;
    psptdwb->sptd.DataIn = SCSI_IOCTL_DATA_IN;
    psptdwb->sptd.DataTransferLength = sizeof(InqData);
    psptdwb->sptd.TimeOutValue = 2;
    psptdwb->sptd.DataBuffer = InqData;
    psptdwb->sptd.SenseInfoOffset = offsetof
    (SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, ucSenseBuf);
    ZeroMemory(&psptdwb->sptd.Cdb[0], 16);
    psptdwb->sptd.Cdb[0] = 0x12;
    psptdwb->sptd.Cdb[1] = psptdwb->sptd.Lun << 5;
    psptdwb->sptd.Cdb[4] = sizeof(InqData);

    length = sizeof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER);
    status = DeviceIoControl(
    fileHandle,
    IOCTL_SCSI_PASS_THROUGH_DIRECT,
    psptdwb,
    length,
    psptdwb,
    length,
    &returned,
    FALSE
    );

    >>> FAILS WITH INCORRECT FUNCTION - ???

    Bill Casey


    ---
    You are currently subscribed to ntdev as: [email protected]
    To unsubscribe send a blank email to $subst('Email.Unsub')
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  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    Hi:

    Yes is still works under windows 2000. The first thing to check
    is the access level you choose when creating the handle. Windows 2000
    scsi pass through must have a specific access level set. Both
    GENERIC_READ and GENERIC_WRITE must be set.

    > -----Original Message-----
    > From: Bill Casey [SMTP:[email protected]]
    > Sent: Friday, May 26, 2000 10:21 AM
    > To: David Jones; Wyler Furgeson
    > Subject: [ntdev] SCSI_PASS_THROUGH
    >
    > Q1: Does SCSI_PASS_THROUGH still work under Win2000?
    >
    > If yes, why does this initial INQ cmd (after successfully opening
    > 'scsi2:') fail with INCORRECT_FUNCTION?
    >
    > // prepare SPTI for Inquiry command
    > psptdwb->sptd.Length = sizeof(SCSI_PASS_THROUGH_DIRECT);
    > psptdwb->sptd.PathId = 0;
    > psptdwb->sptd.CdbLength = CDB6GENERIC_LENGTH;
    > psptdwb->sptd.SenseInfoLength = 32;
    > psptdwb->sptd.DataIn = SCSI_IOCTL_DATA_IN;
    > psptdwb->sptd.DataTransferLength = sizeof(InqData);
    > psptdwb->sptd.TimeOutValue = 2;
    > psptdwb->sptd.DataBuffer = InqData;
    > psptdwb->sptd.SenseInfoOffset = offsetof
    > (SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, ucSenseBuf);
    > ZeroMemory(&psptdwb->sptd.Cdb[0], 16);
    > psptdwb->sptd.Cdb[0] = 0x12;
    > psptdwb->sptd.Cdb[1] = psptdwb->sptd.Lun << 5;
    > psptdwb->sptd.Cdb[4] = sizeof(InqData);
    >
    > length = sizeof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER);
    > status = DeviceIoControl(
    > fileHandle,
    > IOCTL_SCSI_PASS_THROUGH_DIRECT,
    > psptdwb,
    > length,
    > psptdwb,
    > length,
    > &returned,
    > FALSE
    > );
    >
    > >>> FAILS WITH INCORRECT FUNCTION - ???
    >
    > Bill Casey
    >
    >
    > ---
    > You are currently subscribed to ntdev as: [email protected]
    > To unsubscribe send a blank email to $subst('Email.Unsub')
    · Share on Facebook
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