Board OPi Zero 512,  NEXT kernel 4.13.7, last Sunday compiled. I'm trying do start more than one Dallas 1 wire interface. My primary idea was to add second w1-gpio overlay but no success. The next one is to edit device tree for w1-gpio to add another pin, and then to edit fixup script. And need some help to understand this ( copied from sun8i-h3-w1-gpio.dts )   fragment@0 { target = <&pio>; __overlay__ { w1_pins: w1_pins { pins = "PD14"; function = "gpio_in";