comp_head         476 dev/ic/aic79xx.c 			u_int comp_head;
comp_head         490 dev/ic/aic79xx.c 			comp_head = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD);
comp_head         491 dev/ic/aic79xx.c 			if (SCBID_IS_NULL(comp_head)) {