#!/bin/sh

GPIO_PIN=4
GPIO_PATH="/sys/class/gpio/gpio$GPIO_PIN"

case "$1" in
    poweron)
        echo $GPIO_PIN > /sys/class/gpio/export
        echo out > $GPIO_PATH/direction
        echo 1 > $GPIO_PATH/value
        echo host > /sys/devices/platform/ff3e0000.usb2-phy/otg_mode
        ;;
    poweroff)
        echo $GPIO_PIN > /sys/class/gpio/export
        echo 0 > $GPIO_PATH/value
        echo $GPIO_PIN > /sys/class/gpio/unexport
        echo otg > /sys/devices/platform/ff3e0000.usb2-phy/otg_mode
        ;;
    *)
        echo "Usage: $0 {poweron|poweroff}"
        exit 1
        ;;
esac

exit 0