PUSB_BUSIFFN_QUERY_BUS_TIME callback function (usbbusif.h)
The QueryBusTime function gets the current 32-bit USB frame number.
Syntax
typedef NTSTATUS
(USB_BUSIFFN *PUSB_BUSIFFN_QUERY_BUS_TIME) (
IN PVOID,
IN PULONG
);
Parameters
[in] unnamedParam1
Handle returned in the BusContext member of the USB_BUS_INTERFACE_USBDI_V0 structure by an IRP_MN_QUERY_INTERFACE request.
[out, optional] unnamedParam2
Receives the current USB frame number.
Return value
Returns STATUS_SUCCESS on success, and the appropriate error code on failure.
Remarks
This routine replaces the USBD_QueryBusTime library function provided by usbd.sys.
Requirements
Requirement | Value |
---|---|
Target Platform | Desktop |
Header | usbbusif.h (include Usbbusif.h) |
IRQL | < = DISPATCH_LEVEL |