w1_attach_slave_device
w1_attach_slave_device(md, &rn);
w1_attach_slave_device(dev, &rn);
w1_attach_slave_device(dev, tmp);
int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn);
err = w1_attach_slave_device(dev, id);