DEVPKEY_Device_LegacyBusType
The DEVPKEY_Device_LegacyBusType device property represents the legacy bus number of a device instance.
| Attribute | Value |
|---|---|
Property key |
DEVPKEY_Device_LegacyBusType |
Property-data-type identifier |
|
Property access |
Read-only access by installation applications and installers |
Corresponding SPDRP_Xxx identifier |
SPDRP_LEGACYBUSTYPE |
Localized? |
No |
Remarks
Windows sets the value of DEVPKEY_Device_LegacyBusType to the value of the LegacyBusType member of the PNP_BUS_INFORMATION structure that a bus driver returns in response to an IRP_MN_QUERY_BUS_INFORMATION request. The value of DEVPKEY_Device_LegacyBusType is one of INTERFACE_TYPE enumerator values that are defined in Wdm.h and Ntddk.h.
You can call CM_Get_DevNode_Property or SetupDiGetDeviceProperty to retrieve the value of DEVPKEY_Device_LegacyBusType.
Windows Server 2003, Windows XP, and Windows 2000 support this property, but do not support the DEVPKEY_Device_LegacyBusType property key. Instead, you can use the corresponding SPDRP_LEGACYBUSTYPE identifier to access the value of the property on these earlier versions of Windows. For information about how to access this property value on these earlier versions of Windows, see Accessing Device Instance SPDRP_Xxx Properties.
Requirements
Version: Windows Vista and later versions of Windows Header: Devpkey.h (include Devpkey.h)