Fixed a few problems with the Heatmaster.

Hardware/Heatmaster/Heatmaster.cs

@@ -61,6 +61,8 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
     
     private bool available = false;
 
+    private StringBuilder buffer = new StringBuilder();
+
     private string ReadLine(int timeout) {
       int i = 0;
       StringBuilder builder = new StringBuilder();
@@ -82,7 +84,7 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
     private string ReadField(int device, char field) {
       serialPort.WriteLine("[0:" + device + "]R" + field);
       for (int i = 0; i < 5; i++) {
-        string s = ReadLine(100);
+        string s = ReadLine(200);
         Match match = Regex.Match(s, @"-\[0:" + device.ToString() + @"\]R" +
           Regex.Escape(field.ToString()) + ":(.*)");
         if (match.Success) 
@@ -111,7 +113,7 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
     private bool WriteField(int device, char field, string value) {
       serialPort.WriteLine("[0:" + device + "]W" + field + ":" + value);
       for (int i = 0; i < 5; i++) {
-        string s = ReadLine(100);
+        string s = ReadLine(200);
         Match match = Regex.Match(s, @"-\[0:" + device.ToString() + @"\]W" + 
           Regex.Escape(field.ToString()) + ":" + value);
         if (match.Success)
@@ -222,12 +224,8 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
       get { return "Heatmaster"; }
     }
 
-    public override void Update() {
-      if (!available)
-        return;
-
-      while (serialPort.BytesToRead > 0) {
-        Match match = Regex.Match(ReadLine(0), @">\[0:(\d+)\]([0-9:\|-]+)");
+    private void ProcessUpdateLine(string line) {
+      Match match = Regex.Match(line, @">\[0:(\d+)\]([0-9:\|-]+)");
       if (match.Success) {
         int device;
         if (int.TryParse(match.Groups[1].Value, out device)) {
@@ -260,6 +258,20 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
         }
       }
     }
+
+    public override void Update() {
+      if (!available)
+        return;
+
+      while (serialPort.BytesToRead > 0) {
+        byte b = (byte)serialPort.ReadByte();
+        if (b == 0x0D) {
+          ProcessUpdateLine(buffer.ToString());
+          buffer.Length = 0;
+        } else {
+          buffer.Append((char)b);
+        }
+      }
     }
 
     public override string GetReport() {

Hardware/Heatmaster/HeatmasterGroup.cs

@@ -38,8 +38,10 @@
 using System;
 using System.Collections.Generic;
 using System.IO.Ports;
+using System.Security;
 using System.Text;
 using System.Threading;
+using Microsoft.Win32;
 
 namespace OpenHardwareMonitor.Hardware.Heatmaster {
   internal class HeatmasterGroup : IGroup {
@@ -65,9 +67,34 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
       throw new TimeoutException();
     }
 
+    private static string[] GetRegistryPortNames() {
+      List<string> result = new List<string>();
+      try {
+        RegistryKey key = Registry.LocalMachine.OpenSubKey(
+          @"SYSTEM\CurrentControlSet\Enum\USB\Vid_10c4&Pid_ea60&Mi_00");
+        if (key != null) {
+          foreach (string subKeyName in key.GetSubKeyNames()) {
+            RegistryKey subKey =
+              key.OpenSubKey(subKeyName + "\\" + "Device Parameters");
+            if (subKey != null) {
+              string name = subKey.GetValue("PortName") as string;
+              if (name != null)
+                result.Add((string)name);
+            }
+          }
+        }
+      } catch (SecurityException) { }
+      return result.ToArray();
+    }
+
     public HeatmasterGroup(ISettings settings) {
       
-      string[] portNames = SerialPort.GetPortNames();      
+      // No implementation for Heatmaster on Unix systems
+      int p = (int)System.Environment.OSVersion.Platform;
+      if ((p == 4) || (p == 128))
+        return;
+
+      string[] portNames = GetRegistryPortNames();      
       for (int i = portNames.Length - 1; i >= 0; i--) {
         try {
 
@@ -85,7 +112,6 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
           }
 
           if (serialPort.IsOpen) {
-            if (serialPort.CtsHolding) {
             serialPort.DiscardInBuffer();
             serialPort.DiscardOutBuffer(); 
             serialPort.Write(new byte[] { 0xAA }, 0, 1);
@@ -127,9 +153,6 @@ namespace OpenHardwareMonitor.Hardware.Heatmaster {
             } else {
               report.AppendLine("Status: No Response");
             }
-            } else {
-              report.AppendLine("Status: Not Clear to Send");
-            }
             serialPort.DiscardInBuffer();
             serialPort.Close();
             serialPort.Dispose();

Properties/AssemblyVersion.cs

@@ -38,5 +38,5 @@
 using System;
 using System.Reflection;
 
-[assembly: AssemblyVersion("0.1.37.4")]
-[assembly: AssemblyFileVersion("0.1.37.4")]
+[assembly: AssemblyVersion("0.1.37.7")]
+[assembly: AssemblyFileVersion("0.1.37.7")]