ipmbsensor fix errors / thresholds

Make the sensor set the lowest possible value when
multiple read errors occur. Also fix the sensor threshold
settings based on the spec:

A high-going threshold has its assertion events become set when the
reading is >= the threshold, while for a low-going event the assertion
becomes set when the reading is <= the threshold.

Tested: fans boosted after putting me in recovery

Change-Id: I0fc9edafb57afa61cf68124eec5d124cdbb51983
Signed-off-by: James Feist <james.feist@linux.intel.com>
3 files changed
tree: 7af0338baf7980006d8740dd0c100266a3a50ded
  1. cmake/
  2. include/
  3. service_files/
  4. src/
  5. tests/
  6. .clang-format
  7. .clang-ignore
  8. .gitignore
  9. cmake-format.json
  10. CMakeLists.txt
  11. Jenkinsfile
  12. LICENSE
  13. MAINTAINERS
  14. README.md
README.md

dbus-sensors

dbus-sensors is a collection of sensor applications that provide the xyz.openbmc_project.Sensor collection of interfaces. They read sensor values from hwmon, d-bus, or direct driver access to provide readings. Some advance non-sensor features such as fan presence, pwm control, and automatic cpu detection (x86) are also supported.

key features

  • runtime re-configurable from d-bus (entity-manager or the like)

  • isolated: each sensor type is isolated into its own daemon, so a bug in one sensor is unlikely to affect another, and single sensor modifications are possible

  • async single-threaded: uses sdbusplus/asio bindings

  • multiple data inputs: hwmon, d-bus, direct driver access