composer/projects/t31_vixand/general/overlay/etc/init.d/S97gpio

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#!/bin/sh
#
# Start GPIO initialization
#
KMOD_PATH=/lib/modules/3.10.14__isvp_swan_1.0__/ingenic
start() {
printf "Start GPIO initialization"
insmod ${KMOD_PATH/%\//}/gpio.ko
for PIN in $(seq 57 58); do
echo ${PIN} >/proc/jz/claim/gpio
# echo ${PIN} > /sys/class/gpio/export
# echo out > /sys/class/gpio/gpio${PIN}/direction
# echo 0 > /sys/class/gpio/gpio${PIN}/value
done
}
pingpong() {
echo 0 > /sys/class/gpio/gpio57/value
echo 1 > /sys/class/gpio/gpio58/value
sleep 0.5
echo 1 > /sys/class/gpio/gpio57/value
echo 0 > /sys/class/gpio/gpio58/value
sleep 0.5
echo 0 > /sys/class/gpio/gpio57/value
echo 0 > /sys/class/gpio/gpio58/value
}
case "$1" in
start)
start
pingpong
;;
*)
echo "Usage: $0 {start}"
exit 1
esac
exit $?