Win32_USBHub class
The Win32_USBHub WMI class represents the management characteristics of a universal serial bus (USB) hub.
The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.
Syntax
[Dynamic, Provider("CIMWin32a"), UUID("{52E56374-B17E-41DC-00EC-FC3E6E8D8783}"), AMENDMENT]
class Win32_USBHub : CIM_USBHub
{
uint16 Availability;
string Caption;
uint8 ClassCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
uint8 CurrentAlternateSettings[];
uint8 CurrentConfigValue;
string Description;
boolean ErrorCleared;
string ErrorDescription;
boolean GangSwitched;
datetime InstallDate;
uint32 LastErrorCode;
uint8 NumberOfConfigs;
uint8 NumberOfPorts;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
uint8 ProtocolCode;
string Status;
uint16 StatusInfo;
uint8 SubclassCode;
string SystemCreationClassName;
string SystemName;
uint16 USBVersion;
uint32 ConfigManagerErrorCode;
string DeviceID;
string Name;
};
Members
The Win32_USBHub class has these types of members:
Methods
The Win32_USBHub class has these methods.
| Method | Description |
|---|---|
| GetDescriptor | Returns the USB device descriptor. Not implemented by WMI. This method is inherited from CIM_USBHub. |
| Reset | Requests a reset of the logical device. Not implemented by WMI. This method is inherited from CIM_USBHub. |
| SetPowerState | Defines the desired power state for a logical device and when a device should be put into that state. Not implemented by WMI. This method is inherited from CIM_USBHub. |
Properties
The Win32_USBHub class has these properties.
-
Availability
-
-
Data type: uint16
-
Access type: Read-only
Availability and status of the device.
This property is inherited from CIM_USBHub.
-
-
1 (0x1)
-
Other
-
2 (0x2)
-
Unknown
-
3 (0x3)
-
Running or Full Power
-
4 (0x4)
-
Warning
-
5 (0x5)
-
In Test
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6 (0x6)
-
Not Applicable
-
7 (0x7)
-
Power Off
-
8 (0x8)
-
Off Line
-
9 (0x9)
-
Off Duty
-
10 (0xA)
-
Degraded
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11 (0xB)
-
Not Installed
-
12 (0xC)
-
Install Error
-
13 (0xD)
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Power Save - Unknown
The device is known to be in a power save mode, but its exact status is unknown.
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14 (0xE)
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Power Save - Low Power Mode
The device is in a power save state but still functioning, and may exhibit degraded performance.
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15 (0xF)
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Power Save - Standby
The device is not functioning, but could be brought to full power quickly.
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16 (0x10)
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Power Cycle
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17 (0x11)
-
Power Save - Warning
The device is in a warning state, though also in a power save mode.
Caption
-
Data type: string
-
Access type: Read-only
Short textual description of the object. This property is inherited from CIM_ManagedSystemElement.
ClassCode
-
Data type: uint8
-
Access type: Read-only
USB class code. This property is inherited from CIM_USBDevice.
ConfigManagerErrorCode
-
Data type: uint32
-
Access type: Read-only
-
Qualifiers: Schema ("Win32")
Win32 Configuration Manager error code.
This property is inherited from CIM_LogicalDevice
This device is working properly. (0)
Device is working properly.
This device is not configured correctly. (1)
Device is not configured correctly.
Windows cannot load the driver for this device. (2)
The driver for this device might be corrupted, or your system may be running low on memory or other resources. (3)
Driver for this device might be corrupted, or the system may be low on memory or other resources.
This device is not working properly. One of its drivers or your registry might be corrupted. (4)
Device is not working properly. One of its drivers or the registry might be corrupted.
The driver for this device needs a resource that Windows cannot manage. (5)
Driver for the device requires a resource that Windows cannot manage.
The boot configuration for this device conflicts with other devices. (6)
Boot configuration for the device conflicts with other devices.
Cannot filter. (7)
The driver loader for the device is missing. (8)
Driver loader for the device is missing.
This device is not working properly because the controlling firmware is reporting the resources for the device incorrectly. (9)
Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.
This device cannot start. (10)
Device cannot start.
This device failed. (11)
Device failed.
This device cannot find enough free resources that it can use. (12)
Device cannot find enough free resources to use.
Windows cannot verify this device's resources. (13)
Windows cannot verify the device's resources.
This device cannot work properly until you restart your computer. (14)
Device cannot work properly until the computer is restarted.
This device is not working properly because there is probably a re-enumeration problem. (15)
Device is not working properly due to a possible re-enumeration problem.
Windows cannot identify all the resources this device uses. (16)
Windows cannot identify all of the resources that the device uses.
This device is asking for an unknown resource type. (17)
Device is requesting an unknown resource type.
Reinstall the drivers for this device. (18)
Device drivers must be reinstalled.
Failure using the VxD loader. (19)
Your registry might be corrupted. (20)
Registry might be corrupted.
System failure: Try changing the driver for this device. If that does not work, see your hardware documentation. Windows is removing this device. (21)
System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.
This device is disabled. (22)
Device is disabled.
System failure: Try changing the driver for this device. If that doesn't work, see your hardware documentation. (23)
System failure. If changing the device driver is ineffective, see the hardware documentation.
This device is not present, is not working properly, or does not have all its drivers installed. (24)
Device is not present, not working properly, or does not have all of its drivers installed.
Windows is still setting up this device. (25)
Windows is still setting up the device.
Windows is still setting up this device. (26)
Windows is still setting up the device.
This device does not have valid log configuration. (27)
Device does not have valid log configuration.
The drivers for this device are not installed. (28)
Device drivers are not installed.
This device is disabled because the firmware of the device did not give it the required resources. (29)
Device is disabled. The device firmware did not provide the required resources.
This device is using an Interrupt Request (IRQ) resource that another device is using. (30)
Device is using an IRQ resource that another device is using.
This device is not working properly because Windows cannot load the drivers required for this device. (31)
Device is not working properly. Windows cannot load the required device drivers.
ConfigManagerUserConfig
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Data type: boolean
-
Access type: Read-only
If TRUE, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.
CreationClassName
-
Data type: string
-
Access type: Read-only
Name of the class or subclass used in the creation of an instance. When used with other key properties of the class, this property allows all instances of the class and its subclasses to be uniquely identified. This property is inherited from CIM_LogicalDevice.
CurrentAlternateSettings
-
Data type: uint8 array
-
Access type: Read-only
USB alternate settings for each interface in the currently selected configuration (indicated by the CurrentConfigValue property). This array has one entry for each interface in the configuration. If the CurrentConfigValue property has a value of 0 (zero), which indicates that the device is not configured, the array is undefined. For more information about parsing this octet string, see the USB specification. This property is inherited from CIM_USBDevice.
CurrentConfigValue
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Data type: uint8
-
Access type: Read-only
Configuration currently selected for the device. If this value is 0 (zero), the device is unconfigured. This property is inherited from CIM_USBDevice.
Description
-
Data type: string
-
Access type: Read-only
Textual description of the object. This property is inherited from CIM_ManagedSystemElement.
DeviceID
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Key, MaxLen (256), Override ("DeviceID"), MappingStrings ("")
An address or other identifying information which uniquely identifies the USBHub.
ErrorCleared
-
Data type: boolean
-
Access type: Read-only
If TRUE, the error reported in the LastErrorCode property is now cleared. This property is inherited from CIM_LogicalDevice.
ErrorDescription
-
Data type: string
-
Access type: Read-only
Free-form string that supplies information about the error recorded in the LastErrorCode property and corrective actions to perform. This property is inherited from CIM_LogicalDevice.
GangSwitched
-
Data type: boolean
-
Access type: Read-only
If TRUE, power is switched to all ports on the hub simultaneously. If FALSE, power is switched individually for each port.
This property is inherited from CIM_USBHub.
InstallDate
-
Data type: datetime
-
Access type: Read-only
Date and time the object was installed. This property does not need a value to indicate that the object is installed. This property is inherited from CIM_ManagedSystemElement.
LastErrorCode
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Data type: uint32
-
Access type: Read-only
Last error code reported by the logical device.
This property is inherited from CIM_LogicalDevice.
Name
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Override ("Name"), MappingStrings ("")
Indicates the name of the USB Hub.
NumberOfConfigs
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Data type: uint8
-
Access type: Read-only
Number of device configurations that are defined for the device.
This property is inherited from CIM_USBDevice.
NumberOfPorts
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Data type: uint8
-
Access type: Read-only
Number of downstream ports on the hub, including those embedded in the hub's silicon.
This property is inherited from CIM_USBHub.
PNPDeviceID
-
Data type: string
-
Access type: Read-only
Win32 Plug and Play device identifier of the logical device.
Example: "*PNP030b"
This property is inherited from CIM_LogicalDevice.
PowerManagementCapabilities
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Data type: uint16 array
-
Access type: Read-only
Array of the specific power-related capabilities of a logical device.
This property is inherited from CIM_LogicalDevice.
0 (0x0)
Unknown
1 (0x1)
Not Supported
2 (0x2)
Disabled
3 (0x3)
Enabled
The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.
4 (0x4)
Power Saving Modes Entered Automatically
The device can change its power state based on usage or other criteria.
5 (0x5)
Power State Settable
The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.
6 (0x6)
Power Cycling Supported
The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).
7 (0x7)
Timed Power On Supported
The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on.
PowerManagementSupported
-
Data type: boolean
-
Access type: Read-only
If TRUE, the device can be power managed, that is, put into a power-save state. If FALSE, the integer value 1 ("Not Supported") should be the only entry in the PowerManagementCapabilities array.
This property does not indicate whether power management features are currently enabled, or if enabled, which features are supported. For more information, see the PowerManagementCapabilities array. This property is inherited from CIM_LogicalDevice.
ProtocolCode
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Data type: uint8
-
Access type: Read-only
USB protocol code. This property is inherited from CIM_USBDevice.
Status
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Data type: string
-
Access type: Read-only
Current status of the object. This property is inherited from CIM_ManagedSystemElement.
Values include the following:
OK ("OK")
Error ("Error")
Degraded ("Degraded")
Unknown ("Unknown")
Pred Fail ("Pred Fail")
Starting ("Starting")
Stopping ("Stopping")
Service ("Service")
Stressed ("Stressed")
NonRecover ("NonRecover")
No Contact ("No Contact")
Lost Comm ("Lost Comm")
StatusInfo
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Data type: uint16
-
Access type: Read-only
State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.
1 (0x1)
Other
2 (0x2)
Unknown
3 (0x3)
Enabled
4 (0x4)
Disabled
5 (0x5)
Not Applicable
SubclassCode
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Data type: uint8
-
Access type: Read-only
USB subclass code. This property is inherited from CIM_USBDevice.
SystemCreationClassName
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Data type: string
-
Access type: Read-only
Scoping system's creation class name. This property is inherited from CIM_LogicalDevice.
SystemName
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Data type: string
-
Access type: Read-only
Scoping system's name. This property is inherited from CIM_LogicalDevice.
USBVersion
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Data type: uint16
-
Access type: Read-only
Latest USB version supported by the USB device. This property is expressed as a binary-coded decimal (BCD) where a decimal point is implied between the second and third digits. For example, a value of 0x201 indicates that version 2.01 is supported. This property is inherited from CIM_USBDevice.
Requirements
| Minimum supported client |
Windows Vista |
| Minimum supported server |
Windows Server 2008 |
| Namespace |
Root\CIMV2 |
| MOF |
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| DLL |
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