IWDFUsbInterface::GetInterfaceDescriptor method (wudfusb.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 GetInterfaceDescriptor method retrieves a descriptor for a USB interface.
Syntax
void GetInterfaceDescriptor(
[out] PUSB_INTERFACE_DESCRIPTOR UsbAltInterfaceDescriptor
);
Parameters
[out] UsbAltInterfaceDescriptor
A pointer to a variable that receives the USB interface descriptor.
Return value
None
Remarks
After a UMDF driver calls the IWDFUsbTargetDevice::RetrieveUsbInterface method to retrieve the first USB interface for the USB device, a UMDF driver should retrieve the descriptor for the USB interface. Therefore, the GetInterfaceDescriptor method does not fail.
For a code example of how to use the GetInterfaceDescriptor method, see IWDFUsbTargetFactory::CreateUsbTargetDevice.
Requirements
| Requirement | Value |
|---|---|
| End of support | Unavailable in UMDF 2.0 and later. |
| Target Platform | Desktop |
| Minimum UMDF version | 1.5 |
| Header | wudfusb.h (include Wudfusb.h) |
| DLL | WUDFx.dll |