EVT_UCX_CONTROLLER_GET_CURRENT_FRAMENUMBER - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ucxcontroller.h
EVT_UCX_CONTROLLER_GET_CURRENT_FRAMENUMBER EvtUcxControllerGetCurrentFramenumber;
NTSTATUS EvtUcxControllerGetCurrentFramenumber(
[in] UCXCONTROLLER UcxController,
[out] PULONG FrameNumber
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
The client driver's implementation that UCX calls to retrieve the current 32-bit frame number.
UcxController [in]A handle to the UCX controller that the client driver received in a previous call to the UcxControllerCreate method.
FrameNumber [out]A pointer to the current 32-bit frame number.
If the operation is successful, the callback function must return STATUS_SUCCESS, or another status value for which NT_SUCCESS(status) equals TRUE. Otherwise it must return a status value for which NT_SUCCESS(status) equals FALSE.
The UCX client driver registers its EVT_UCX_CONTROLLER_GET_CURRENT_FRAMENUMBER implementation with the USB host controller extension (UCX) by calling the UcxControllerCreate method.
NTSTATUS
Controller_EvtControllerGetCurrentFrameNumber(
UCXCONTROLLER UcxController,
PULONG FrameNumber
)
{
UNREFERENCED_PARAMETER(UcxController);
//
// TODO: Return the current 32-bit frame number. Do not access the
// controller registers if the controller is not in D0.
//
*FrameNumber = 0xFFFFFFFF;
DbgTrace(TL_INFO, Controller, "Controller_EvtControllerGetCurrentFrameNumber");
return STATUS_SUCCESS;
}