object is near the sensor, usually be observing
reflectivity of infrared or ultrasound emitted.
Often these sensors are unit less and as such conversion
- to SI units is not possible. Where it is, the units should
- be meters. If such a conversion is not possible, the reported
- values should behave in the same way as a distance, i.e. lower
- values indicate something is closer to the sensor.
+ to SI units is not possible. Higher proximity measurements
+ indicate closer objects, and vice versa.
What: /sys/.../iio:deviceX/in_illuminance_input
What: /sys/.../iio:deviceX/in_illuminance_raw