linux-sg2042/Documentation/ABI/testing/sysfs-bus-iio-cros-ec

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What: /sys/bus/iio/devices/iio:deviceX/calibrate
Date: July 2015
KernelVersion: 4.7
Contact: linux-iio@vger.kernel.org
Description:
Writing '1' will perform a FOC (Fast Online Calibration). The
corresponding calibration offsets can be read from *_calibbias
entries.
What: /sys/bus/iio/devices/iio:deviceX/location
Date: July 2015
KernelVersion: 4.7
Contact: linux-iio@vger.kernel.org
Description:
This attribute returns a string with the physical location where
the motion sensor is placed. For example, in a laptop a motion
sensor can be located on the base or on the lid. Current valid
values are 'base' and 'lid'.