What: /sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
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Date: June 2020
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KernelVersion: 5.8
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Contact: linux-iio@vger.kernel.org
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Description:
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Contaminants build-up in the measurement chamber or optical
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elements deterioration leads to sensor drift.
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One can compensate for sensor drift by using automatic self
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calibration procedure (asc).
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Writing 1 or 0 to this attribute will respectively activate or
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deactivate asc.
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Upon reading current asc status is returned.
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What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value
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Date: June 2020
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KernelVersion: 5.8
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Contact: linux-iio@vger.kernel.org
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Description:
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Contaminants build-up in the measurement chamber or optical
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elements deterioration leads to sensor drift.
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One can compensate for sensor drift by using forced
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recalibration (frc). This is useful in case there's known
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co2 reference available nearby the sensor.
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Picking value from the range [400 1 2000] and writing it to the
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sensor will set frc.
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Upon reading current frc value is returned. Note that after
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power cycling default value (i.e 400) is returned even though
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internally sensor had recalibrated itself.
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