var q windows7serialportcommunicationcWhy CDC Serial Device installation fails on Windows Vista and 7 OK just an update if someone would have similar problem. Interface Association Descriptor. Tinterfaceassociationdescriptor,   b. Length. 0x. 0B,                                       DSCTYPEIAD  b. Descriptor. Type 1. First. Interface. Interface. Count. COMMINTF,                                   b. Why CDC Serial Device installation fails on Windows Vista and 7 Because of Microchips INF file bug, you may succeed or fail on installation of CDC device driver to. This tutorial will show you step by step ways how you can perform serial port communication operation in your c application with necessary code examples. Welcome to my tutorial on Serial Port Communication in VB. Net. Lately Ive seen a lot of questions on how to send and receive data through a serial port, so I thought. Interface. Class of the first interface. ABSTRACTCONTROLMODEL,                     b. HHD Software Free Serial Port Monitor RS232422485 Communication Software Data Sniffer and Analyzer. Analyze Your Com Port Communication Data Traffic. Freeware. This video tutorial shows how we can access the Serial Port on our computer using Visual Studio C Windows Forms Application. We can use this to establish. This document explains some basic serial communication techniques. For more information on serial communication concepts and terminology, see the related link Serial. EZPD CCG2 Datasheet USB TypeC Port Controller Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 951341709 4089432600. Interface. Subclass of the first interface. V2. 5TER,                                     b. Interface. Protocol of the first interface. Interface Descriptor. USBINTFDSC,                 Size of this descriptor in bytes. USBDESCRIPTORINTERFACE,                   INTERFACE descriptor type. CDCCOMM1INTFID,                           Interface Number. Alternate Setting Number. Number of endpoints in this intf. COMMINTF,                                   Class code. ABSTRACTCONTROLMODEL,                     Subclass code. V2. 5TER,                                     Protocol code. Interface string index     CDC Class Specific DescriptorssizeofUSBCDCHEADERFNDSC, CSINTERFACE, DSCFNHEADER, 0x. USBCDCACMFNDSC, CSINTERFACE, DSCFNACM, USBCDCACMFNDSCVAL,sizeofUSBCDCUNIONFNDSC, CSINTERFACE, DSCFNUNION, CDCCOMM1INTFID, CDCDATA1INTFID,sizeofUSBCDCCALLMGTFNDSC, CSINTERFACE, DSCFNCALLMGT, 0x. CDCDATA1INTFID,     Endpoint Descriptor. USBEPDSCUSBDESCRIPTORENDPOINT,                    Endpoint DescriptorEP0. IN,                                   Endpoint. AddressINTERRUPT,                                 Attributes. Interval Endpoint Descriptor. USBEPDSCUSBDESCRIPTORENDPOINT,                    Endpoint DescriptorEP0. OUT,                                  Endpoint. AddressBULK,                                      Attributes. CDCDATAINEPSIZE,0x. Interval     Endpoint Descriptor. USBEPDSCUSBDESCRIPTORENDPOINT,                    Endpoint DescriptorEP0. IN,                                   Endpoint. AddressBULK,                                      Attributes. CDCDATAINEPSIZE,0x. This is IAD configuration which is OK. This means that for CDC 3 endpoints and one interface are used. Previous one that I was using had 3 endpoints and TWO interfaces additional interface descriptor for Data EP, this is solution that is used in some project that I have seen so I used it before this issue. It works fine with XP but no way to make it works on Win. I dont know what exactly causes this issue but I am for now satisfied with this solution.