DSRAWIO

DSRAWIO STRUC
    dsr_hdr        db  SIZE DSHDR dup(?) ; Packet header
    dsr_flags      db  ?     ; Flags
    dsr_cclus      dw  ?     ; Count of clusters to operate on
    dsr_reserved0  dd  0     ; Reserved
    dsr_reserved1  dd  0     ; Reserved
DSRAWIO ENDS

Contains information about a raw I/O IOCTL operation. Immediately precedes an array of RawClusterInfo structures.

dsr_hdr

DSHDR structure that defines the header common to all DriveSpace Receive Control Data IOCTLs.

dsr_flags

Can be DSRFLOCKED (01h) if buffers are locked. Under normal circumstances, this field must be set to zero when the IOCTL is issued.

dsr_cclus

Number of RawClusterInfo structures follow the DSRAWIO structure. This is the same as the number of clusters on which to perform the action.

dsr_reserved0 and dsr_reserved1

Reserved; must be zero.

See also RawClusterInfo