Documentation/hwmon/isl28022.rst
.. SPDX-License-Identifier: GPL-2.0-or-later
Supported chips:
Renesas ISL28022
Prefix: 'isl28022'
Addresses scanned: none
Datasheet: Publicly available at the Renesas website
https://www.renesas.com/us/en/www/doc/datasheet/isl28022.pdf
Author: Carsten Spieß [email protected]
The ISL28022 is a power monitor with I2C interface. The device monitors voltage, current via shunt resistor and calculated power.
This driver does not auto-detect devices. You will have to instantiate the device explicitly. Please see Documentation/i2c/instantiating-devices.rst for details.
The shunt value in micro-ohms, shunt voltage range and averaging can be set with device properties. Please refer to the Documentation/devicetree/bindings/hwmon/renesas,isl28022.yaml for bindings if the device tree is used.
The driver supports only shunt and bus continuous ADC mode at 15bit resolution. Averaging can be set from 1 to 128 samples (power of 2) on both channels. Shunt voltage range of 40, 80, 160 or 320mV is allowed The bus voltage range is 60V fixed.
The following attributes are supported. All attributes are read-only.
======================= ======================================================= in0_input bus voltage (milli Volt) in1_input shunt voltage (milli Volt)
curr1_input current (milli Ampere) power1_input power (micro Watt) ======================= =======================================================
The following attributes are supported. All attributes are read-only.
======================= ======================================================= shunt_voltage shunt voltage (micro Volt) ======================= =======================================================