UdecxUsbDeviceInitAllocate function (udecxusbdevice.h)

Allocates memory for a UDECXUSBDEVICE_INIT structure that is used to initialize a virtual USB device.

Syntax

PUDECXUSBDEVICE_INIT UdecxUsbDeviceInitAllocate(
  [in] WDFDEVICE UdecxWdfDevice
);

Parameters

[in] UdecxWdfDevice

A handle to a framework device object that represents the a USB device. The client driver initialized this object in the previous call to UdecxWdfDeviceAddUsbDeviceEmulation.

Return value

This method returns a pointer to an opaque UDECXUSBDEVICE_INIT that contains the initialization parameters. The structure is allocated by the USB device emulation class extension (UdeCx).

Remarks

The UDE client driver calls this method to allocate parameters for the virtual device that is created by a subsequent call to UdecxUsbDeviceCreate. If the device is not created or the driver is finished using the resources, the driver must free the resources by calling UdecxUsbDeviceInitFree.

Requirements

   
Minimum supported client Windows 10
Minimum supported server Windows Server 2016
Target Platform Windows
Minimum KMDF version 1.15
Header udecxusbdevice.h (include Udecx.h)
Library Udecxstub.lib
IRQL PASSIVE_LEVEL

See also

Architecture: USB Device Emulation (UDE)

Write a UDE client driver