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# 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
## sensor documentation
- [ExternalSensor](https://github.com/openbmc/docs/blob/master/designs/external-sensor.md)
virtual sensor