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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/afe/current-sense-amplifier.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Current Sense Amplifier
maintainers:
- Peter Rosin <peda@axentia.se>
description: |
When an io-channel measures the output voltage from a current sense
amplifier, the interesting measurement is almost always the current
through the sense resistor, not the voltage output. This binding
describes such a current sense circuit.
properties:
compatible:
const: current-sense-amplifier
io-channels:
maxItems: 1
description: |
Channel node of a voltage io-channel.
sense-resistor-micro-ohms:
description: The sense resistance.
sense-gain-mult:
$ref: /schemas/types.yaml#/definitions/uint32
description: Amplifier gain multiplier. The default is <1>.
sense-gain-div:
$ref: /schemas/types.yaml#/definitions/uint32
description: Amplifier gain divider. The default is <1>.
required:
- compatible
- io-channels
- sense-resistor-micro-ohms
additionalProperties: false
examples:
- |
sysi {
compatible = "current-sense-amplifier";
io-channels = <&tiadc 0>;
sense-resistor-micro-ohms = <20000>;
sense-gain-mult = <50>;
};
...
|
