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#!/bin/bash
find_iio_device_with_illuminance() {
for device in /sys/bus/iio/devices/iio:device*; do
if [ -f "$device/in_illuminance_raw" ]; then
echo "$device"
return 0
fi
done
echo "No device found."
return 1
}
# Timeout in seconds
TIMEOUT=30
INTERVAL=1
while [ $TIMEOUT -gt 0 ]; do
DEVICE_PATH=$(find_iio_device_with_illuminance)
if [[ $DEVICE_PATH != "No device found." ]]; then
echo "Ambient Light Sensor is ready @ $DEVICE_PATH"
exit 0
fi
sleep $INTERVAL
TIMEOUT=$(( TIMEOUT - INTERVAL ))
done
echo "Ambient Light Sensor not found within the timeout period."
exit 1
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