Home    Prev Next    
Contents
Programming For USB Device
Overview
Programmers Guide
Scenario
Data transfer
Synchronous Transfer
Asynchronous Transfer
Reading Descriptors
USB Support Routines And Structures
Common Procedures
UsbEnumerateDevices
OpenRapidUsb
IsRapidUsbOpened
CloseRapidUsb
Descriptors
UsbGetDescriptor
UsbGetDeviceDescriptor
UsbGetStringDescriptor
UsbGetConfigDescriptor
UsbFreeConfigDescriptor
UsbGetInterfaceDescriptor
UsbFreeInterfaceDescriptor
UsbGetEndpointDescriptor
Configure Device
UsbGetDeviceInfo
UsbUnconfigureDevice
UsbSelectConfig
UsbGetConfig
UsbSelectInterface
UsbGetInterface
UsbResetDevice
UsbGetBandwidthInfo
UsbCyclePort
Features and Status
UsbSetFeature
UsbClearFeature
UsbGetStatus
Vendor/Class Requests
UsbVendorRequestIn
UsbVendorRequestOut
UsbClassRequestIn
UsbClassRequestOut
Pipes
IsRapidUsbPipeOpened
UsbPipeOpen
UsbPipeClose
UsbGetPipeCount
UsbPipeGetInfo
UsbPipeDirectionIn
UsbPipeGetType
UsbTransfer
UsbTransferAsync
TRANSFER_COMPLETION_ROUTINE
UsbCancelTransfer
UsbPipeReset
UsbPipeAbort
Other
UsbGetPortStatus
UsbGetCurrentFrameNumber
USB Structures and Types
RDUSB_DEVICE_INFORMATION
RDUSB_PIPE_INFORMATION
RDUSB_PIPE_TYPE
RDUSB_BANDWIDTH_INFORMATION
UsbGetBandwidthInfo
Go to RapidDriver Main Page


Language

Description

C/C++
BOOL UsbGetBandwidthInfo(IN  USB_DEVICE_HANDLE hUsb
OUT PRDUSB_BANDWIDTH_INFORMATION BandwidthInfo);  

Delphi
function UsbGetBandwidthInfo(hUsb : USB_DEVICE_HANDLE;
                             var BandwidthInfo : RDUSB_BANDWIDTH_INFORMATION) : BOOL; stdcall;

VB
Function UsbGetBandwidthInfo (ByVal hUsb As Long, _
                              ByRef BandwidthInfo As RDUSB_BANDWIDTH_INFORMATION) As Boolean



Parameters
 
hUsb  
Specifies device handle. This handle can be obtained with OpenRapidUsb.  
 
BandwidthInfo  
Pointer to RDUSB_BANDWIDTH_INFORMATION structure.  

Return value


If function succeeds return value is TRUE.  

Description

Use this function to retrieve information about total and consumed bandwidth on USB bus.