#include <ior.h>
typedef struct type_sdeffsd_req_usage {
USHORT _IOR_ioctl_drive;
USHORT _IOR_ioctl_function;
ULONG _IOR_ioctl_control_param;
ULONG _IOR_ioctl_buffer_ptr;
ULONG _IOR_ioctl_client_params;
ULONG _IOR_ioctl_return;
} _type_sdeffsd_req_usage;
Contains information used with the IOR_GEN_IOCTL function.
IOR