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#!/bin/bash
source /usr/sbin/gpio-defs.sh
function gpio_number() {
GPIO_BASE=$(cat /sys/class/gpio/gpiochip$GPIO_CHIP0_BASE/base)
echo $((${GPIO_BASE} + $1))
}
# Configure GPIO as output and set its value
function gpio_configure_output() {
gpioId=$(gpio_number $1)
echo $gpioId > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio${gpioId}/direction
echo $2 > /sys/class/gpio/gpio${gpioId}/value
echo $gpioId > /sys/class/gpio/unexport
}
function gpio_get_val() {
gpioId=$(gpio_number $1)
echo $gpioId > /sys/class/gpio/export
echo $(cat /sys/class/gpio/gpio$gpioId/value)
echo $gpioId > /sys/class/gpio/unexport
}
# Configure GPIO as input
function gpio_configure_input() {
gpioId=$(gpio_number $1)
echo $gpioId > /sys/class/gpio/export
echo "in" > /sys/class/gpio/gpio${gpioId}/direction
echo $gpioId > /sys/class/gpio/unexport
}
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