find_sbus_slot
if ((b_slot = find_sbus_slot(dip, dipb)) < 0)
if ((r_slot = find_sbus_slot(dip, rdip)) < 0)
slot = find_sbus_slot(dip, rdip);
slot = find_sbus_slot(dip, rdip);
if ((slot = find_sbus_slot(dip, rdip)) == -1) {
find_sbus_slot(dev_info_t *dip, dev_info_t *rdip);