linux/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934

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What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistorY
KernelVersion: 6.7
Contact: linux-iio@vger.kernel.org
Description:
The value of the shunt resistor may be known only at runtime
and set by a client application. This attribute allows to
set its value in micro-ohms. X is the IIO index of the device.
Y is the channel number. The value is used to calculate
current, power and accumulated energy.