IPnpCallbackHardware2 interface (wudfddi.h)
[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]
The IPnpCallbackHardware2 interface exposes callback methods related to hardware.
Inheritance
The IPnpCallbackHardware2 interface inherits from the IUnknown interface. IPnpCallbackHardware2 also has these types of members:
- Methods
Methods
The IPnpCallbackHardware2 interface has these methods.
| IPnpCallbackHardware2::OnPrepareHardware The OnPrepareHardware method performs any operations that are needed to make a device accessible to the driver. |
| IPnpCallbackHardware2::OnReleaseHardware The OnReleaseHardware method performs operations that are needed when a device is no longer accessible. |
Requirements
| Requirement | Value |
|---|---|
| End of support | Unavailable in UMDF 2.0 and later. |
| Target Platform | Desktop |
| Minimum UMDF version | 1.11 |
| Header | wudfddi.h |