D-Bus 可配置传感器扫描应用_C++_代码_相关文件_下载

# 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 ## dbus interfaces A typical dbus-sensors object support the following dbus interfaces: ``` Path /xyz/openbmc_project/sensors/<type>/<sensor_name> Interfaces xyz.openbmc_project.Sensor.Value xyz.openbmc_project.Sensor.Threshold.Critical xyz.openbmc_project.Sensor.Threshold.Warning xyz.openbmc_project.State.Decorator.Availability xyz.openbmc_project.State.Decorator.OperationalStatus xyz.openbmc_project.Association.Definitions ``` Sensor interfaces collection are described [here](https://github.com/openbmc/phosphor-dbus-interfaces/tree/master/yaml/xyz/openbmc_project/Sensor). Consumer examples of these interfaces are [Redfish](https://github.com/openbmc/bmcweb/blob/master/redfish-core/lib/sensors.hpp), [Phosphor-Pid-Control](https://github.com/openbmc/phosphor-pid-control), [IPMI SDR](https://github.com/openbmc/phosphor-host-ipmid/blob/master/dbus-sdr/sensorcommands.cpp). ## Reactor dbus-sensor daemons are [reactors](https://github.com/openbmc/entity-manager) that dynamically create and update sensors configuration when system configuration gets updated. Using asio timers and async calls, dbus-sensor daemons read sensor values and check thresholds periodically. PropertiesChanged signals will be broadcasted for other services to consume when value or threshold status change. OperationStatus is set to false if the sensor is determined to be faulty. A simple sensor example can be found [here](https://github.com/openbmc/entity-manager/blob/master/docs/my_first_sensors.md). ## configuration Sensor devices are described using Exposes records in configuration file. Name and Type fields are required. Different sensor types have different fields. Refer to entity manager [schema](https://github.com/openbmc/entity-manager/blob/master/schemas/legacy.json) for complete list. ## sensor documentation - [ExternalSensor](https://github.com/openbmc/docs/blob/master/designs/external-sensor.md) virtual sensor