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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / 4b98de56a69895d0c26e9abd6e236a73a236263a
commit4b98de56a69895d0c26e9abd6e236a73a236263a[log] [tgz]
authorPatrick Williams <patrick@stwcx.xyz>Mon Feb 03 14:14:17 2025 -0500
committerPatrick Williams <patrick@stwcx.xyz>Mon Mar 03 16:05:46 2025 +0000
tree319e1fc84908457a4686beb2813bded36812acec
parentd000018abdbdbe7b979e04bbaf2e1d62cad326c6 [diff]
meson: reformat with meson formatter

Apply the `meson format` results.

Change-Id: Id7af795e402928290b31fb085bd12a715122545b
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
2 files changed
tree: 319e1fc84908457a4686beb2813bded36812acec
  1. subprojects/
  2. test/
  3. .clang-format
  4. .clang-tidy
  5. .editorconfig
  6. .gitignore
  7. .prettierrc.yaml
  8. calculate.cpp
  9. calculate.hpp
  10. dbusSensor.cpp
  11. dbusSensor.hpp
  12. dbusUtils.cpp
  13. dbusUtils.hpp
  14. exprtkTools.hpp
  15. LICENSE
  16. main.cpp
  17. meson.build
  18. meson.options
  19. OWNERS
  20. phosphor-virtual-sensor.service.in
  21. README.md
  22. thresholds.hpp
  23. virtual_sensor_config.json
  24. virtualSensor.cpp
  25. 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 configuration from D-Bus

For example:

{
  "Desc": {
    "Config": "D-Bus"
  }
}

Sensors added this way can only use a set of restricted calculations. Currently supported types are Average, Maximum, Minimum, Sum and 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).