w1_slave_search_device
sl = w1_slave_search_device(md, &rn);
sl = w1_slave_search_device(md, &rn);
sl = w1_slave_search_device(dev, tmp);
struct w1_slave *w1_slave_search_device(struct w1_master *dev,
sl = w1_slave_search_device(dev, id);