IBUF_SIZE         333 dev/ic/cy.c    			cy->cy_ibuf = malloc(IBUF_SIZE, M_DEVBUF, M_NOWAIT);
IBUF_SIZE         340 dev/ic/cy.c    			cy->cy_ibuf_end = cy->cy_ibuf + IBUF_SIZE;
IBUF_SIZE        1211 dev/ic/cy.c    					bf += IBUF_SIZE;
IBUF_SIZE        1213 dev/ic/cy.c    				if (bf > (IBUF_SIZE/2))	/* turn RTS off */