EVT_UDECX_USB_ENDPOINT_RESET callback function (udecxusbendpoint.h)

The USB device emulation class extension (UdeCx) invokes this callback function to reset an endpoint of the virtual USB device.

Syntax

EVT_UDECX_USB_ENDPOINT_RESET EvtUdecxUsbEndpointReset;

void EvtUdecxUsbEndpointReset(
  [in] UDECXUSBENDPOINT UdecxUsbEndpoint,
  [in] WDFREQUEST Request
)
{...}

Parameters

[in] UdecxUsbEndpoint

A handle to a UDE endpoint object that represents the endpoint to reset. The client driver retrieved this pointer in the previous call to UdecxUsbEndpointCreate.

[in] Request

A handle to a framework request object that represents the request to reset the endpoint.

Return value

None

Remarks

The client driver registered this callback function in a previous call to UdecxUsbEndpointInitSetCallbacks by supplying a function pointer to its implementation.

The reset request clears the error condition in the endpoint that causes failed I/O transfers. At that time, UdeCx can invoke the EVT_UDECX_USB_ENDPOINT_RESET callback function. That call is asynchronous. The client driver completes the request and signals completion with status by calling WdfRequestCompleteWithInformation method . (this is the only way the UDECX client uses the request parameter).

Requirements

See also

Architecture: USB Device Emulation (UDE)

How to recover from USB pipe errors

Managing I/O Queues

Write a UDE client driver