@startuml
interface Fan {
        {abstract} void PWM(int percent)
        {abstract} int RPM()
}

interface Sensor {
        {abstract} int value()
        {abstract} string name()
}

class PwmControl {
        +void pwm(int percent)
        +int pwm()

        + void enableManualControl()
        + void reset()

        - System Paths
        - Initial Values
}

Fan <|-- HwmonFan

Sensor <|-- HwmonSensor
Sensor <|-- NvidiaSensor

HwmonFan - Sensor
HwmonFan -- PwmControl


@enduml