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# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# For more information:
# https://www.electronics-tutorials.ws/io/thermistors.html
description: Common properties for thermistors
compatible: cros-ec,thermistor
properties:
scaling-factor:
required: true
type: int
description: Scaling factor for voltage pairs
num-pairs:
required: true
type: int
description: Number of sample data points for linear interpolation
steinhart-reference-mv:
required: true
type: int
description: >
Used only for testing.
Is the reference voltage for temperature 25C.
steinhart-reference-res:
required: true
type: int
description: >
Used only for testing.
Is the reference resistance for temperature 25C.
child-binding:
description: >
Data samples derived from Steinhart-Hart
equation in a resistor divider circuit.
Used in linear interpolation.
properties:
milivolt:
type: int
required: true
description: Voltage reading for a given temperature sample
temp:
type: int
required: true
description: Temperature (Celcius) in a sample
sample-index:
type: int
required: true
description: The index of a datum to maintain sample order to interpolate.
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