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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/iio/afe/current-sense-amplifier.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Current Sense Amplifier

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maintainers:

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  - Peter Rosin <peda@axentia.se>

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description: |

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  When an io-channel measures the output voltage from a current sense

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  amplifier, the interesting measurement is almost always the current

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  through the sense resistor, not the voltage output. This binding

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  describes such a current sense circuit.

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properties:

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  compatible:

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    const: current-sense-amplifier

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  io-channels:

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    maxItems: 1

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    description: |

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      Channel node of a voltage io-channel.

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  sense-resistor-micro-ohms:

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    description: The sense resistance.

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  sense-gain-mult:

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    $ref: /schemas/types.yaml#/definitions/uint32

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    description: Amplifier gain multiplier. The default is <1>.

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  sense-gain-div:

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    $ref: /schemas/types.yaml#/definitions/uint32

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    description: Amplifier gain divider. The default is <1>.

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required:

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  - compatible

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  - io-channels

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  - sense-resistor-micro-ohms

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additionalProperties: false

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examples:

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  - |

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    sysi {

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        compatible = "current-sense-amplifier";

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        io-channels = <&tiadc 0>;

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        sense-resistor-micro-ohms = <20000>;

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        sense-gain-mult = <50>;

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    };

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...

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