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path: root/recipes-core/udev/files/verdin-imx8mm/toradex-adc.sh
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#!/usr/bin/env sh
#
# Called from udev. Compatible to verdin-imx8mm.
#
# Create/remove symlinks to/from the files with raw adc data.

# Map the ADC lines:
# verdin-adc{1..4} -> TLA2024 ADC{3,2,1,0}

if [ "$ACTION" = "add" ]; then
    ln -s "/sys$DEVPATH/in_voltage0_raw" /dev/verdin-adc4
    ln -s "/sys$DEVPATH/in_voltage1_raw" /dev/verdin-adc3
    ln -s "/sys$DEVPATH/in_voltage2_raw" /dev/verdin-adc2
    ln -s "/sys$DEVPATH/in_voltage3_raw" /dev/verdin-adc1
elif [ "$ACTION" = "remove" ]; then
    rm -f /dev/verdin-adc1
    rm -f /dev/verdin-adc2
    rm -f /dev/verdin-adc3
    rm -f /dev/verdin-adc4
fi