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Diffstat (limited to 'dts/Bindings/iio/afe/current-sense-amplifier.txt')
| -rw-r--r-- | dts/Bindings/iio/afe/current-sense-amplifier.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/dts/Bindings/iio/afe/current-sense-amplifier.txt b/dts/Bindings/iio/afe/current-sense-amplifier.txt new file mode 100644 index 0000000000..821b61b8c5 --- /dev/null +++ b/dts/Bindings/iio/afe/current-sense-amplifier.txt @@ -0,0 +1,26 @@ +Current Sense Amplifier +======================= + +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. + +Required properties: +- compatible : "current-sense-amplifier" +- io-channels : Channel node of a voltage io-channel. +- sense-resistor-micro-ohms : The sense resistance in microohms. + +Optional properties: +- sense-gain-mult: Amplifier gain multiplier. The default is <1>. +- sense-gain-div: Amplifier gain divider. The default is <1>. + +Example: + +sysi { + compatible = "current-sense-amplifier"; + io-channels = <&tiadc 0>; + + sense-resistor-micro-ohms = <20000>; + sense-gain-mul = <50>; +}; |