EVT_UCX_USBDEVICE_ENABLE - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ucxusbdevice.h
EVT_UCX_USBDEVICE_ENABLE EvtUcxUsbdeviceEnable;
VOID EvtUcxUsbdeviceEnable(
[in] UCXCONTROLLER UcxController,
[in] WDFREQUEST Request
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
The client driver's implementation that UCX calls to program information about the device and its default control endpoint into the controller.
UcxController [in]A handle to the UCX controller that the client driver received in a previous call to the UcxControllerCreate method.
Request [in]A structure of type USBDEVICE_ENABLE.
The UCX client driver registers this callback function with the USB host controller extension (UCX) by calling the UcxUsbDeviceCreate method.
To transition the device to the desired state, the host controller driver communicates with the hardware to complete the request.
In this callback function, the client driver prepares the controller to accept and schedule transfers on the default control endpoint for the USB device.
When the driver has finished, it completes the WDFREQUEST.
The client driver returns completion status in Request. The driver can complete the WDFREQUEST asynchronously.
VOID
UsbDevice_EvtUcxUsbDeviceEnable(
UCXCONTROLLER UcxController,
WDFREQUEST Request
)
{
UNREFERENCED_PARAMETER(UcxController);
DbgTrace(TL_INFO, UsbDevice, "UsbDevice_EvtUcxUsbDeviceEnable");
WDF_REQUEST_PARAMETERS_INIT(&wdfRequestParams);
WdfRequestGetParameters(WdfRequest, &wdfRequestParams);
usbDeviceEnable = (PUSBDEVICE_ENABLE)wdfRequestParams.Parameters.Others.Arg1;
...
WdfRequestComplete(Request, STATUS_SUCCESS);
}