noioctl
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,
extern int noioctl(struct open_file *, u_long, void *);
.dv_ioctl = noioctl,
.dv_ioctl = noioctl,