Transmits control data over a default control endpoint.
Declaration Syntax
C# | Visual Basic | Visual C++ |
public virtual bool ControlTransfer( ref UsbSetupPacket setupPacket, Object buffer, int bufferLength, out int lengthTransferred )
Public Overridable Function ControlTransfer ( _ ByRef setupPacket As UsbSetupPacket, _ buffer As Object, _ bufferLength As Integer, _ <OutAttribute> ByRef lengthTransferred As Integer _ ) As Boolean
public: virtual bool ControlTransfer( UsbSetupPacket% setupPacket, Object^ buffer, int bufferLength, [OutAttribute] int% lengthTransferred )
Parameters
- setupPacket (UsbSetupPacket%)
- An 8-byte setup packet which contains parameters for the control request. See section 9.3 USB Device Requests of the Universal Serial Bus Specification Revision 2.0 for more information.
- buffer (Object)
- Data to be sent/received from the device.
- bufferLength (Int32)
- Length of the buffer param.
- lengthTransferred (Int32%)
- Number of bytes sent or received (depends on the direction of the control transfer).
Return Value
True on success.