IOP_REQUEST_TYPE_IOCTL_COMMAND
req.header.type = IOP_REQUEST_TYPE_IOCTL_COMMAND;
req->header.type = IOP_REQUEST_TYPE_IOCTL_COMMAND;
req->header.type = IOP_REQUEST_TYPE_IOCTL_COMMAND;
case IOP_REQUEST_TYPE_IOCTL_COMMAND:
case IOP_REQUEST_TYPE_IOCTL_COMMAND: