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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / 9b9b8a79e09eb68fe1b7b3fd168a759aa78901cd
commit9b9b8a79e09eb68fe1b7b3fd168a759aa78901cd[log] [tgz]
authorPatrick Williams <patrick@stwcx.xyz>Wed Feb 15 12:59:30 2023 -0600
committerPatrick Williams <patrick@stwcx.xyz>Wed Feb 15 12:59:32 2023 -0600
treecd4df3be7c3dfb257e09d2422cd54ca551758502
parent32dff21bf5ec860a359b70b9d9dcae656b40578e [diff]
service: remove obmc-mapper dependencies

Mapper is dbus-activated now and this target is removed.  Remove the
dependency as it performs no function.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I2a61198ae29bcd5b98f9f88c5ecbfce677dc7b82
1 file changed
tree: cd4df3be7c3dfb257e09d2422cd54ca551758502
  1. subprojects/
  2. .clang-format
  3. .editorconfig
  4. .gitignore
  5. .prettierrc.yaml
  6. dbusSensor.hpp
  7. dbusUtils.hpp
  8. exprtkTools.hpp
  9. LICENSE
  10. meson.build
  11. OWNERS
  12. phosphor-virtual-sensor.service.in
  13. README.md
  14. thresholds.hpp
  15. virtual_sensor_config.json
  16. virtualSensor.cpp
  17. 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).