ndi_dc_devi_create
*rval = ndi_dc_devi_create(dcp, pptr->port_dip,
rval = ndi_dc_devi_create(dcp, dip, 0, NULL);
ndi_dc_devi_create(struct devctl_iocdata *dcp, dev_info_t *pdip, int flags,
rv = ndi_dc_devi_create(dcp, self, 0, NULL);