root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
4
root@rbone:/sys/class/gpio/gpio30# echo 1 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
2
root@rbone:/sys/class/gpio/gpio30# echo 1 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
3
root@rbone:/sys/class/gpio/gpio30# echo 1 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
3
root@rbone:/sys/class/gpio/gpio30# echo 1 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# cat /sys/devices/ocp.3/helper.15/AIN[1-3]
1799
1799
1799
root@rbone:/sys/class/gpio/gpio30# echo 1 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
1799
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
3
root@rbone:/sys/class/gpio/gpio30# echo 0 > value;cat /sys/devices/ocp.3/helper.15/AIN4
3
root@rbone:/sys/class/gpio/gpio30#