'Declaration
 
Public Overloads Sub ControlOut( _
   ByVal requestType As Short, _
   ByVal request As Short, _
   ByVal value As Short, _
   ByVal index As Short _
) 

'Usage
 
Dim instance As UsbSession
Dim requestType As Short
Dim request As Short
Dim value As Short
Dim index As Short
 
instance.ControlOut(requestType, request, value, index)

public void ControlOut( 
   short requestType,
   short request,
   short value,
   short index
)

public:
void ControlOut( 
   short requestType,
   short request,
   short value,
   short index
) 

Parameters

requestType

A bitmap field for defining the USB control port request. The bitmap fields are defined by the USB specification. The direction bit must be host-to-device.

request

Request ID for this transfer. The meaning of this value depends on requestType.

value

The requested value for this transfer.

index

The interface or endpoint index number, depending on requestType.

The usage of each parameter is based on the relevant USB base or class specification, or on a vendor-specific request definition.

Since the USBTMC specification does not currently define any standard control port requests in the direction of host-to-device, this function is intended for use with only vendor-defined requests. However, this method does not check the requestType parameter for this.

Current with Keysight IO Libraries Suite 18