USBF_PortInfo (Industry 8.1)

  • Статья

7/8/2014

Review the syntax, members, and examples of the USBF_PortInfo WMI provider class for Windows Embedded 8.1 Industry (Industry 8.1).

This class retrieves current information about the USB ports on a device.

Syntax

class USBF_PortInfo {
    [key, read] string PortLocationPath;
    [key, read] Uint32 PortNumber;
    [read] string HubLocationPath;
    [read] boolean HasDeviceAttached;
    [read] UInt32 DeviceClassID;
    [read] UInt32 DeviceVendorID;
    [read] UInt32 DeviceProductID;
};

Members

The following table lists the properties that belong to this class.

Properties

Property

Data type

Qualifiers

Description

PortLocationPath

string

[key, read]

Specifies a unique USB port location path in the following format:

PCIROOT(PciBusNumber)#PCI(PciDeviceNumber + PciFunctionNumber)#USBROOT(HubPortNumber)#USB(HubPortNumber[0]) … #USB(HubPortNumber [X])

For example: PCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)#USB(8)

PortNumber

UInt32

[key, read]

Specifies the USB hub controller port number assigned by the system.

HubLocationPath

string

[read]

Specifies the hub ID that defines the top-down parent child position of the port.

For example: PCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)

HasDeviceAttached

Boolean

[read]

Indicates if that there is a USB device attached to the USB port.

The value of the DeviceClassID, DeviceVendorID, and DeviceProductID properties are valid only when HasDeviceAttached is set to true.

DeviceClassID

UInt32

[read]

Specifies the class ID for the USB device currently attached.

DeviceVendorID

UInt32

[read]

Specifies the vendor ID for the USB device currently attached.

DeviceProductID

UInt32

[read]

Specifies the product ID for the USB device currently attached.

Example

The following example demonstrates how to use the USBF_PortInfo class in a Windows PowerShell script.

Get port information

#Get USB port information
cls

$WmiNS = "root\standardcimv2\embedded"
$Ports = Get-WmiObject -namespace $wmiNS -class USBF_PortInfo
Echo "Total " $Ports.Count "USB Ports"

#List all ports and attached device
$Ports | Format-Table Port*, HasDeviceAttached, Device*

See Also

Reference

USB Filter WMI provider reference

Concepts

USB Filter