# Class CIM_IRQ
extends CIM_SystemResource

Personal computer architecture IRQ.

### Table of Contents
Hierarchy
Direct Known Subclasses
Class Qualifiers
Class Properties
Class Methods

## Class Hierarchy

CIM_ManagedElement
|
+--CIM_ManagedSystemElement
|
+--CIM_LogicalElement
|
+--CIM_EnabledLogicalElement
|
+--CIM_SystemResource
|
+--CIM_IRQ

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Description | string | Personal computer architecture IRQ.
UMLPackagePath | string | CIM::System::SystemResources
Version | string | 2.6.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
Availability | uint16 |
Description | string | Availability of the IRQ.
MappingStrings | string | MIF.DMTF|IRQ|002.2
ValueMap | string | 1, 2, 3, 4, 5
Values | string | Other, Unknown, Available, In Use/Not Available, In Use and Available/Shareable
CreationClassName | string |
Description | string | CreationClassName indicates the name of the class or the subclass used in the creation of an instance. When used with the other key properties of this class, this property allows all instances of this class and its subclasses to be uniquely identified.
Key | boolean | true
MaxLen | uint32 | 256
CSCreationClassName | string |
Description | string | The scoping ComputerSystem's CreationClassName.
Key | boolean | true
MaxLen | uint32 | 256
Propagated | string | CIM_ComputerSystem.CreationClassName
CSName | string |
Description | string | The scoping ComputerSystem's Name.
Key | boolean | true
MaxLen | uint32 | 256
Propagated | string | CIM_ComputerSystem.Name
Hardware | boolean |
Description | string | The Hardware property indicates whether the interrupt is hardware or software based. (If TRUE, the interrupt is hardware based.) On a personal computer, a hardware IRQ is a physical wire to a programmable interrupt controller (PIC) chip, through which the CPU can be notified of time critical events. Some IRQ lines are reserved for standard Devices such as the keyboard, floppy disk drives, and the system clock. A software interrupt is a programmatic mechanism to allow an application to get the attention of the Processor.
IRQNumber | uint32 |
Description | string | A part of the object's key value, IRQ Number.
Key | boolean | true
MappingStrings | string | MIF.DMTF|IRQ|002.1
Shareable | boolean |
Description | string | Boolean indicating whether the IRQ can be shared.
MappingStrings | string | MIF.DMTF|IRQ|002.4
Override | string | Shareable
TriggerLevel | uint16 |
Description | string | IRQ trigger level indicating whether the interrupt is triggered by the hardware signal going high (value=4) or low (value=3). Also, "Other" (1) and "Unknown" (2) may be defined.
MappingStrings | string | MIF.DMTF|System Resource IRQ Info|001.3
ValueMap | string | 1, 2, 3, 4
Values | string | Other, Unknown, Active Low, Active High
TriggerType | uint16 |
Description | string | IRQ trigger type indicating whether edge (value=4) or level triggered (value=3) interrupts occur. Also, "Other" (1) and "Unknown" (2) may be defined.
MappingStrings | string | MIF.DMTF|IRQ|002.3, MIF.DMTF|System Resource IRQ Info|001.2
ValueMap | string | 1, 2, 3, 4
Values | string | Other, Unknown, Level, Edge

### Inherited Properties

Name | Data Type
--- | ---
Caption | string
CommunicationStatus | uint16
Description | string
DetailedStatus | uint16
ElementName | string
EnabledDefault | uint16
EnabledState | uint16
Generation | uint64
HealthState | uint16
ImplementationInfo | uint16
InstallDate | datetime
InstanceID | string
Name | string
OperatingStatus | uint16
OtherEnabledState | string
PrimaryStatus | uint16
RequestedState | uint16
Status | string
TimeOfLastStateChange | datetime
TransitioningToState | uint16
AvailableRequestedStates | uint16[]
OperationalStatus | uint16[]
StatusDescriptions | string[]

## Class Methods

### Inherited Class Methods

Name | Return Type
--- | ---
RequestStateChange | uint32