kernel

linux-6.8.1/Documentation/hwmon/ina238.rst

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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 <nathan.rossi@digi.com>
+
+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
+======================= =======================================================