Got related ports working for windows

Former-commit-id: 75ceb7c27963d5fbf9b77a65947e51eb85d9e13a

Author: johnlauer

seriallist_windows.go

@@ -116,6 +116,48 @@ func getListViaWmiPnpEntity() ([]OsSerialPort, os.SyscallError) {
 	list := make([]OsSerialPort, count)
 
 	for i := 0; i < count; i++ {
+
+		// items we're looping thru look like below and
+		// thus we can query for any of these names
+		/*
+					__GENUS                     : 2
+			__CLASS                     : Win32_PnPEntity
+			__SUPERCLASS                : CIM_LogicalDevice
+			__DYNASTY                   : CIM_ManagedSystemElement
+			__RELPATH                   : Win32_PnPEntity.DeviceID="USB\\VID_1D50&PID_606D&MI_02\\6&2F09EA14&0&0002"
+			__PROPERTY_COUNT            : 24
+			__DERIVATION                : {CIM_LogicalDevice, CIM_LogicalElement, CIM_ManagedSystemElement}
+			__SERVER                    : JOHN-ATIV
+			__NAMESPACE                 : root\cimv2
+			__PATH                      : \\JOHN-ATIV\root\cimv2:Win32_PnPEntity.DeviceID="USB\\VID_1D50&PID_606D&MI_02\\6&2F09EA14
+			                              &0&0002"
+			Availability                :
+			Caption                     : TinyG v2 (Data Channel) (COM12)
+			ClassGuid                   : {4d36e978-e325-11ce-bfc1-08002be10318}
+			CompatibleID                : {USB\Class_02&SubClass_02&Prot_01, USB\Class_02&SubClass_02, USB\Class_02}
+			ConfigManagerErrorCode      : 0
+			ConfigManagerUserConfig     : False
+			CreationClassName           : Win32_PnPEntity
+			Description                 : TinyG v2 (Data Channel)
+			DeviceID                    : USB\VID_1D50&PID_606D&MI_02\6&2F09EA14&0&0002
+			ErrorCleared                :
+			ErrorDescription            :
+			HardwareID                  : {USB\VID_1D50&PID_606D&REV_0097&MI_02, USB\VID_1D50&PID_606D&MI_02}
+			InstallDate                 :
+			LastErrorCode               :
+			Manufacturer                : Synthetos (www.synthetos.com)
+			Name                        : TinyG v2 (Data Channel) (COM12)
+			PNPDeviceID                 : USB\VID_1D50&PID_606D&MI_02\6&2F09EA14&0&0002
+			PowerManagementCapabilities :
+			PowerManagementSupported    :
+			Service                     : usbser
+			Status                      : OK
+			StatusInfo                  :
+			SystemCreationClassName     : Win32_ComputerSystem
+			SystemName                  : JOHN-ATIV
+			PSComputerName              : JOHN-ATIV
+		*/
+
 		// item is a SWbemObject, but really a Win32_Process
 		itemRaw, _ := oleutil.CallMethod(result, "ItemIndex", i)
 		item := itemRaw.ToIDispatch()
@@ -133,14 +175,41 @@ func getListViaWmiPnpEntity() ([]OsSerialPort, os.SyscallError) {
 		list[i].Name = s
 		list[i].FriendlyName = asString.ToString()
 		//}
+
+		// get the deviceid so we can figure out related ports
+		// it will look similar to
+		// USB\VID_1D50&PID_606D&MI_00\6&2F09EA14&0&0000
+		deviceIdStr, _ := oleutil.GetProperty(item, "DeviceID")
+		devIdItems := strings.Split(deviceIdStr.ToString(), "&")
+		log.Printf("DeviceId elements:%v", devIdItems)
+		list[i].SerialNumber = devIdItems[3]
+		list[i].IdProduct = strings.Replace(devIdItems[1], "PID_", "", 1)
+		list[i].IdVendor = strings.Replace(devIdItems[0], "USB\\VID_", "", 1)
+
+		manufStr, _ := oleutil.GetProperty(item, "Manufacturer")
+		list[i].Manufacturer = manufStr.ToString()
+		descStr, _ := oleutil.GetProperty(item, "Description")
+		list[i].Product = descStr.ToString()
+		//classStr, _ := oleutil.GetProperty(item, "CreationClassName")
+		//list[i].DeviceClass = classStr.ToString()
+
 	}
 
-	/*
-		for index, element := range list {
-			log.Println("index ", index, " element ", element.Name+
-				" friendly ", element.FriendlyName)
+	for index, element := range list {
+
+		log.Printf("index:%v, name:%v, friendly:%v ", index, element.Name, element.FriendlyName)
+
+		for index2, element2 := range list {
+			if index == index2 {
+				continue
+			}
+			if element.SerialNumber == element2.SerialNumber {
+				log.Printf("Found related element1:%v, element2:%v", element, element2)
+				list[index].RelatedNames = append(list[index].RelatedNames, element2.Name)
+			}
 		}
-	*/
+
+	}
 
 	return list, err
 }