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