VDC_DRIVER_NAME
(void) strcpy(vdc->cinfo->dki_cname, VDC_DRIVER_NAME);
(void) strcpy(vdc->cinfo->dki_dname, VDC_DRIVER_NAME);
vdc->io_stats = kstat_create(VDC_DRIVER_NAME, vdc->instance, NULL,
"%serr", VDC_DRIVER_NAME);
"%s%d,err", VDC_DRIVER_NAME, instance);