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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / 9358f6bda1b5bcbf300fdb67804dc16a91ac7acc
commit9358f6bda1b5bcbf300fdb67804dc16a91ac7acc[log] [tgz]
authorKonstantin Aladyshev <aladyshev22@gmail.com>Thu Mar 14 14:23:40 2024 +0300
committerKonstantin Aladyshev <aladyshev22@gmail.com>Thu Mar 14 14:23:40 2024 +0300
treef4e0802013ad7bf23aa5d767a25dfac59dda094d
parent96439f1fa20dd8ba83491860327956396911eb1d [diff]
Add fan_pwm to the possible sensors

Add fan PWM output to the list of supported sensor types.

Change-Id: Ia0c7970934fe403d4e6e0142af78b7815bcff0c9
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
1 file changed
tree: f4e0802013ad7bf23aa5d767a25dfac59dda094d
  1. subprojects/
  2. test/
  3. .clang-format
  4. .editorconfig
  5. .gitignore
  6. .prettierrc.yaml
  7. dbusSensor.cpp
  8. dbusSensor.hpp
  9. dbusUtils.cpp
  10. dbusUtils.hpp
  11. exprtkTools.hpp
  12. LICENSE
  13. meson.build
  14. meson.options
  15. OWNERS
  16. phosphor-virtual-sensor.service.in
  17. README.md
  18. thresholds.hpp
  19. virtual_sensor_config.json
  20. virtualSensor.cpp
  21. virtualSensor.hpp
README.md

phosphor-virtual-sensor

phosphor-virtual-sensor reads the configuration file virtual_sensor_config.json from one of three locations:

  1. The current directory.
  2. /var/lib/phosphor-virtual-sensor
  3. /usr/share/phosphor-virtual-sensor

By default the repository will install a sample config into (3).

There are two types of data in this file.

virtual sensor configuration information

See virtual_sensor_config.json in this repository for an example. Sensors added this way can use any expression that is accepted by exprtk.

information to get a virtual sensor configuraton from D-Bus

For example:

{
  "Desc": {
    "Config": "D-Bus",
    "Type": "ModifiedMedian"
  }
}

Sensors added this way can only use a set of restricted calculations. Currently the only type supported is modifiedMedian.

The virtual sensor configuration information needs to be added into the relevant hardware configuration file in entity-manager. This method of adding a virtual sensor allows a recipe that builds for different hardware configurations to have different virtual sensors for each configuration.

The virtual sensor configuration in entity manager follows a different format to the JSON in virtual_sensor_config.json (specified in entity-manager/schemas/VirtualSensor.json).