Win32_USBControllerDevice and its CIM_USBController

Question

the usb contoller is defined in  http://msdn.microsoft.com/en-us/library/windows/desktop/aa394505(v=vs.85).aspx

as this

class Win32_USBControllerDevice : CIM_ControlledBy
{
  uint16            AccessState;
  CIM_USBController REF Antecedent;
  CIM_LogicalDevice REF Dependent;
  uint32            NegotiatedDataWidth;
  uint64            NegotiatedSpeed;
  uint32            NumberOfHardResets;
  uint32            NumberOfSoftResets;
};

but for each controller i get the same CIM_USBController , so i think it is the root hub of the usb devices ?

but how to acces the manufacturer then ? it is not in the cim logical device class ?

http://msdn.microsoft.com/en-us/library/windows/desktop/aa387884(v=vs.85).aspx

class CIM_LogicalDevice : CIM_LogicalElement
{
  uint16   Availability;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  string   Description;
  string   DeviceID;
  boolean  ErrorCleared;
  string   ErrorDescription;
  datetime InstallDate;
  uint32   LastErrorCode;
  string   Name;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
};

http://msdn.microsoft.com/en-us/library/windows/desktop/aa388644(v=vs.85).aspx

class CIM_USBController : CIM_Controller
{
  uint16   Availability;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  string   Description;
  string   DeviceID;
  boolean  ErrorCleared;
  string   ErrorDescription;
  datetime InstallDate;
  uint32   LastErrorCode;
  string   Manufacturer;
  uint32   MaxNumberControlled;
  string   Name;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  uint16   ProtocolSupported;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
  datetime TimeOfLastReset;
};

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nattelip

Answer 1

it is in the Win32_PnPEntity class , which you can get with a query on pnpdeviceid retreived from CIM_LogicalDevice

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nattelip

Answer 2

Hi lipjie,

According to your description, I'd like to move this thread to General Windows Desktop Development Issues Forum for better support, where more experts live.

Thanks for your understanding.

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Bob Shen [MSFT]
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