# Power Devices Usages for devices that measure or track power, such as universal power supplies or chargers. ## Topics ### Getting the Usages [`kHIDUsage_PD_ActivePower`](/documentation/HIDDriverKit/kHIDUsage_PD_ActivePower) [`kHIDUsage_PD_ApparentPower`](/documentation/HIDDriverKit/kHIDUsage_PD_ApparentPower) [`kHIDUsage_PD_AudibleAlarmControl`](/documentation/HIDDriverKit/kHIDUsage_PD_AudibleAlarmControl) [`kHIDUsage_PD_AwaitingPower`](/documentation/HIDDriverKit/kHIDUsage_PD_AwaitingPower) [`kHIDUsage_PD_BadCount`](/documentation/HIDDriverKit/kHIDUsage_PD_BadCount) [`kHIDUsage_PD_Battery`](/documentation/HIDDriverKit/kHIDUsage_PD_Battery) [`kHIDUsage_PD_BatteryID`](/documentation/HIDDriverKit/kHIDUsage_PD_BatteryID) [`kHIDUsage_PD_BatterySystem`](/documentation/HIDDriverKit/kHIDUsage_PD_BatterySystem) [`kHIDUsage_PD_BatterySystemID`](/documentation/HIDDriverKit/kHIDUsage_PD_BatterySystemID) [`kHIDUsage_PD_Boost`](/documentation/HIDDriverKit/kHIDUsage_PD_Boost) [`kHIDUsage_PD_Buck`](/documentation/HIDDriverKit/kHIDUsage_PD_Buck) [`kHIDUsage_PD_ChangedStatus`](/documentation/HIDDriverKit/kHIDUsage_PD_ChangedStatus) [`kHIDUsage_PD_Charger`](/documentation/HIDDriverKit/kHIDUsage_PD_Charger) [`kHIDUsage_PD_ChargerID`](/documentation/HIDDriverKit/kHIDUsage_PD_ChargerID) [`kHIDUsage_PD_CommunicationLost`](/documentation/HIDDriverKit/kHIDUsage_PD_CommunicationLost) [`kHIDUsage_PD_ConfigActivePower`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigActivePower) [`kHIDUsage_PD_ConfigApparentPower`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigApparentPower) [`kHIDUsage_PD_ConfigCurrent`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigCurrent) [`kHIDUsage_PD_ConfigFrequency`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigFrequency) [`kHIDUsage_PD_ConfigHumidity`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigHumidity) [`kHIDUsage_PD_ConfigPercentLoad`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigPercentLoad) [`kHIDUsage_PD_ConfigTemperature`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigTemperature) [`kHIDUsage_PD_ConfigVoltage`](/documentation/HIDDriverKit/kHIDUsage_PD_ConfigVoltage) [`kHIDUsage_PD_Current`](/documentation/HIDDriverKit/kHIDUsage_PD_Current) [`kHIDUsage_PD_DelayBeforeReboot`](/documentation/HIDDriverKit/kHIDUsage_PD_DelayBeforeReboot) [`kHIDUsage_PD_DelayBeforeShutdown`](/documentation/HIDDriverKit/kHIDUsage_PD_DelayBeforeShutdown) [`kHIDUsage_PD_DelayBeforeStartup`](/documentation/HIDDriverKit/kHIDUsage_PD_DelayBeforeStartup) [`kHIDUsage_PD_Flow`](/documentation/HIDDriverKit/kHIDUsage_PD_Flow) [`kHIDUsage_PD_FlowID`](/documentation/HIDDriverKit/kHIDUsage_PD_FlowID) [`kHIDUsage_PD_Frequency`](/documentation/HIDDriverKit/kHIDUsage_PD_Frequency) [`kHIDUsage_PD_FrequencyOutOfRange`](/documentation/HIDDriverKit/kHIDUsage_PD_FrequencyOutOfRange) [`kHIDUsage_PD_Gang`](/documentation/HIDDriverKit/kHIDUsage_PD_Gang) [`kHIDUsage_PD_GangID`](/documentation/HIDDriverKit/kHIDUsage_PD_GangID) [`kHIDUsage_PD_Good`](/documentation/HIDDriverKit/kHIDUsage_PD_Good) [`kHIDUsage_PD_HighVoltageTransfer`](/documentation/HIDDriverKit/kHIDUsage_PD_HighVoltageTransfer) [`kHIDUsage_PD_Humidity`](/documentation/HIDDriverKit/kHIDUsage_PD_Humidity) [`kHIDUsage_PD_Initialized`](/documentation/HIDDriverKit/kHIDUsage_PD_Initialized) [`kHIDUsage_PD_Input`](/documentation/HIDDriverKit/kHIDUsage_PD_Input) [`kHIDUsage_PD_InputID`](/documentation/HIDDriverKit/kHIDUsage_PD_InputID) [`kHIDUsage_PD_InternalFailure`](/documentation/HIDDriverKit/kHIDUsage_PD_InternalFailure) [`kHIDUsage_PD_LowVoltageTransfer`](/documentation/HIDDriverKit/kHIDUsage_PD_LowVoltageTransfer) [`kHIDUsage_PD_ModuleReset`](/documentation/HIDDriverKit/kHIDUsage_PD_ModuleReset) [`kHIDUsage_PD_Outlet`](/documentation/HIDDriverKit/kHIDUsage_PD_Outlet) [`kHIDUsage_PD_OutletID`](/documentation/HIDDriverKit/kHIDUsage_PD_OutletID) [`kHIDUsage_PD_OutletSystem`](/documentation/HIDDriverKit/kHIDUsage_PD_OutletSystem) [`kHIDUsage_PD_OutletSystemID`](/documentation/HIDDriverKit/kHIDUsage_PD_OutletSystemID) [`kHIDUsage_PD_Output`](/documentation/HIDDriverKit/kHIDUsage_PD_Output) [`kHIDUsage_PD_OutputID`](/documentation/HIDDriverKit/kHIDUsage_PD_OutputID) [`kHIDUsage_PD_OverCharged`](/documentation/HIDDriverKit/kHIDUsage_PD_OverCharged) [`kHIDUsage_PD_OverTemperature`](/documentation/HIDDriverKit/kHIDUsage_PD_OverTemperature) [`kHIDUsage_PD_Overload`](/documentation/HIDDriverKit/kHIDUsage_PD_Overload) [`kHIDUsage_PD_PercentLoad`](/documentation/HIDDriverKit/kHIDUsage_PD_PercentLoad) [`kHIDUsage_PD_PeripheralDevice`](/documentation/HIDDriverKit/kHIDUsage_PD_PeripheralDevice) [`kHIDUsage_PD_PowerConverter`](/documentation/HIDDriverKit/kHIDUsage_PD_PowerConverter) [`kHIDUsage_PD_PowerConverterID`](/documentation/HIDDriverKit/kHIDUsage_PD_PowerConverterID) [`kHIDUsage_PD_PowerSummary`](/documentation/HIDDriverKit/kHIDUsage_PD_PowerSummary) [`kHIDUsage_PD_PowerSummaryID`](/documentation/HIDDriverKit/kHIDUsage_PD_PowerSummaryID) [`kHIDUsage_PD_PowerSupply`](/documentation/HIDDriverKit/kHIDUsage_PD_PowerSupply) [`kHIDUsage_PD_Present`](/documentation/HIDDriverKit/kHIDUsage_PD_Present) [`kHIDUsage_PD_PresentStatus`](/documentation/HIDDriverKit/kHIDUsage_PD_PresentStatus) [`kHIDUsage_PD_ShutdownImminent`](/documentation/HIDDriverKit/kHIDUsage_PD_ShutdownImminent) [`kHIDUsage_PD_ShutdownRequested`](/documentation/HIDDriverKit/kHIDUsage_PD_ShutdownRequested) [`kHIDUsage_PD_SwitchOffControl`](/documentation/HIDDriverKit/kHIDUsage_PD_SwitchOffControl) [`kHIDUsage_PD_SwitchOnControl`](/documentation/HIDDriverKit/kHIDUsage_PD_SwitchOnControl) [`kHIDUsage_PD_SwitchOnOff`](/documentation/HIDDriverKit/kHIDUsage_PD_SwitchOnOff) [`kHIDUsage_PD_Switchable`](/documentation/HIDDriverKit/kHIDUsage_PD_Switchable) [`kHIDUsage_PD_Temperature`](/documentation/HIDDriverKit/kHIDUsage_PD_Temperature) [`kHIDUsage_PD_Test`](/documentation/HIDDriverKit/kHIDUsage_PD_Test) [`kHIDUsage_PD_Tested`](/documentation/HIDDriverKit/kHIDUsage_PD_Tested) [`kHIDUsage_PD_ToggleControl`](/documentation/HIDDriverKit/kHIDUsage_PD_ToggleControl) [`kHIDUsage_PD_UPS`](/documentation/HIDDriverKit/kHIDUsage_PD_UPS) [`kHIDUsage_PD_Undefined`](/documentation/HIDDriverKit/kHIDUsage_PD_Undefined) [`kHIDUsage_PD_Used`](/documentation/HIDDriverKit/kHIDUsage_PD_Used) [`kHIDUsage_PD_Voltage`](/documentation/HIDDriverKit/kHIDUsage_PD_Voltage) [`kHIDUsage_PD_VoltageOutOfRange`](/documentation/HIDDriverKit/kHIDUsage_PD_VoltageOutOfRange) [`kHIDUsage_PD_iManufacturer`](/documentation/HIDDriverKit/kHIDUsage_PD_iManufacturer) [`kHIDUsage_PD_iName`](/documentation/HIDDriverKit/kHIDUsage_PD_iName) [`kHIDUsage_PD_iProduct`](/documentation/HIDDriverKit/kHIDUsage_PD_iProduct) [`kHIDUsage_PD_iserialNumber`](/documentation/HIDDriverKit/kHIDUsage_PD_iserialNumber) --- Copyright © 2026 Apple Inc. 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