| # 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>; |
| }; |
| ... |
