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54 lines
1.3 KiB
54 lines
1.3 KiB
# 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 <[email protected]> |
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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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