DEVPKEY_Device_BusNumber
The DEVPKEY_Device_BusNumber device property represents the number that identifies the bus instance that a device instance is attached to.
| Attribute | Value |
|---|---|
Property key |
DEVPKEY_Device_BusNumber |
Property-data-type identifier |
|
Property access |
Read-only access by installation applications and installers |
Corresponding SPDRP_Xxx identifier |
SPDRP_BUSNUMBER |
Localized? |
No |
Remarks
Windows sets the value of DEVPKEY_Device_BusNumber to the value of the BusNumber member of the PNP_BUS_INFORMATION structure that a bus driver returns in response to an IRP_MN_QUERY_BUS_INFORMATION request.
You can call CM_Get_DevNode_Property or SetupDiGetDeviceProperty to retrieve the value of DEVPKEY_Device_BusNumber.
Windows Server 2003, Windows XP, and Windows 2000 support this property, but do not support the DEVPKEY_Device_BusNumber property key. Instead, you can use the corresponding SPDRP_BUSNUMBER 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)