How to verify GPIO function¶

Here is some command to verify GPIO151 can control via 40Pins IO.

• Set as GPIO mode
  

  echo "mode 151 0" > /sys/devices/platform/1000b000.pinctrl/mt_gpio 
  

• Set as output mode
  

  echo "dir 151 1" > /sys/devices/platform/1000b000.pinctrl/mt_gpio
  

• Set output high
  

  echo "out 151 1" > /sys/devices/platform/1000b000.pinctrl/mt_gpio
  

• Set output low
  

  echo "out 151 0" > /sys/devices/platform/1000b000.pinctrl/mt_gpio