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56 lines
1.7 KiB
56 lines
1.7 KiB
.. SPDX-License-Identifier: GPL-2.0-only |
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Kernel driver ina238 |
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==================== |
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Supported chips: |
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* Texas Instruments INA238 |
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Prefix: 'ina238' |
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Addresses: I2C 0x40 - 0x4f |
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Datasheet: |
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https://www.ti.com/lit/gpn/ina238 |
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Author: Nathan Rossi <[email protected]> |
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Description |
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----------- |
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The INA238 is a current shunt, power and temperature monitor with an I2C |
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interface. It includes a number of programmable functions including alerts, |
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conversion rate, sample averaging and selectable shunt voltage accuracy. |
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The shunt value in micro-ohms can be set via platform data or device tree at |
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compile-time or via the shunt_resistor attribute in sysfs at run-time. Please |
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refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings |
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if the device tree is used. |
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Sysfs entries |
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------------- |
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======================= ======================================================= |
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in0_input Shunt voltage (mV) |
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in0_min Minimum shunt voltage threshold (mV) |
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in0_min_alarm Minimum shunt voltage alarm |
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in0_max Maximum shunt voltage threshold (mV) |
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in0_max_alarm Maximum shunt voltage alarm |
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in1_input Bus voltage (mV) |
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in1_min Minimum bus voltage threshold (mV) |
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in1_min_alarm Minimum shunt voltage alarm |
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in1_max Maximum bus voltage threshold (mV) |
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in1_max_alarm Maximum shunt voltage alarm |
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power1_input Power measurement (uW) |
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power1_max Maximum power threshold (uW) |
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power1_max_alarm Maximum power alarm |
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curr1_input Current measurement (mA) |
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temp1_input Die temperature measurement (mC) |
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temp1_max Maximum die temperature threshold (mC) |
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temp1_max_alarm Maximum die temperature alarm |
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======================= =======================================================
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