anchor.diff:  #KERNEL_DEVICETREE_raspberrypi3 ?= "bcm2710-rpi-3-b.dtb"
   #KERNEL_DEVICETREE_raspberrypi-cm3 ?= "bcm2710-rpi-cm3.dtb"
   
  -KERNEL_DEVICETREE ?= " \
  +KERNEL_DEVICETREE = " \
       bcm2708-rpi-0-w.dtb \
       bcm2708-rpi-b.dtb \
       bcm2708-rpi-b-plus.dtb \
  
positive.code:     overlays/pwm-ir-tx.dtbo \
      overlays/pwm.dtbo \
      overlays/qca7000.dtbo \
      overlays/raspidac3.dtbo \
      overlays/rotary-encoder.dtbo \
      overlays/rpi-backlight.dtbo \
      overlays/rpi-cirrus-wm5102.dtbo \
  
negative.code:     overlays/dwc-otg.dtbo \
      overlays/enc28j60.dtbo \
      overlays/enc28j60-spi2.dtbo \
      overlays/exc3000.dtbo \
      overlays/fe-pi-audio.dtbo \
      overlays/goodix.dtbo \
      overlays/googlevoicehat-soundcard.dtbo \
  