Linux Driver for INA209



The Linux driver supports the INA209 Current/Power Monitor. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.

Linux Mainline Status

Available in Linux Main line: Yes
Available through N/A

Supported Devices:
  • ina209
Linux Source Files

The files associated with this device are:

  1. drivers/hwmon/ina209.c
  2. Documentation/devicetree/bindings/i2c/ina209.txt
  3. linux/platform_data/ina2xx.h
  4. Documentation/hwmon/ina209
Source Files


Linux Device Tree Documentation


Other Files



Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or
"make nconfig")

Menuconfig Location

Symbol: SENSORS_INA209 [=y]
Type  : tristate
Prompt: TI / Burr Brown INA209
    -> Device Drivers
      -> Hardware Monitoring support (HWMON [=y])
  Defined at drivers/hwmon/Kconfig:1443
  Depends on: HWMON [=y] && I2C [=y]

Fixes and Code Enhancements


If there are fixes and or code enhancements that need to be added to this
driver please either

1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Here


2.  Contact your TI representative.
Current/voltage/power monitors
INA209 26V, 12-bit, i2c output current/voltage/power monitor w/ analog comparator

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