VOP_IOCTL
error = VOP_IOCTL(vp, DIOCGPART, (caddr_t)&dpart, FREAD,
drive->lasterror = VOP_IOCTL(drive->vp, DIOCGPART,
error = VOP_IOCTL(drive->vp, DIOCWLABEL,
error = VOP_IOCTL(drive->vp, DIOCWLABEL,
return (VOP_IOCTL(ttyvp, ap->a_cmd, ap->a_data, ap->a_fflag,
error = VOP_IOCTL(vp, com, data, fp->f_flag, ucred, msg);
if (VOP_IOCTL(hmp->devvp, DIOCGPART, (void *)&part, 0, cred, NULL) == 0) {
if (VOP_IOCTL(vol->dev->devvp, DIOCGPART, (void*)&part, 0,