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PODetermine if serial port is normal COM or SPP
 

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    <p>I'm looking for a way to determine if a COM is a standard COM or if it's an SPP COM, also known as a cable replacement bluetooth adapter for a COM device.</p> <p>I have a device which works both in USB (COM -> USB) and Bluetooth, and the Bluetooth interface works with SPP.</p> <p>I am currently using <code>System.IO.Ports.SerialPort.GetPortNames()</code> to get the COMs.</p> <p>Is there a way to determine whether or not it's a connected with Bluetooth or USB?</p> <p>SOLUTION:</p> <pre><code>System.Management.ManagementObjectSearcher Searcher = new System.Management.ManagementObjectSearcher("Select * from WIN32_SerialPort"); foreach (System.Management.ManagementObject Port in Searcher.Get()) { foreach (System.Management.PropertyData Property in Port.Properties) { Console.WriteLine(Property.Name + " " + (Property.Value == null ? null : Property.Value.ToString())); } } </code></pre> <p>And the output is something similar:</p> <pre><code>Availability 2 Binary True Capabilities CapabilityDescriptions Caption Standard Serial over Bluetooth link (COM10) ConfigManagerErrorCode 0 ConfigManagerUserConfig False CreationClassName Win32_SerialPort Description Standard Serial over Bluetooth link DeviceID COM10 ErrorCleared ErrorDescription InstallDate LastErrorCode MaxBaudRate 9600 MaximumInputBufferSize 0 MaximumOutputBufferSize 0 MaxNumberControlled Name Standard Serial over Bluetooth link (COM10) OSAutoDiscovered True PNPDeviceID BTHENUM\{00001101-0000-1000-8000-00805F9B34FB}_LOCALMFG&amp;0000\8&amp;3062A492&amp;0&amp;000000000000_0000001C PowerManagementCapabilities System.UInt16[] PowerManagementSupported False ProtocolSupported ProviderType RS232 Serial Port SettableBaudRate True SettableDataBits True SettableFlowControl True SettableParity True SettableParityCheck False SettableRLSD True SettableStopBits True Status OK StatusInfo 3 Supports16BitMode False SupportsDTRDSR True SupportsElapsedTimeouts True SupportsIntTimeouts True SupportsParityCheck False SupportsRLSD True SupportsRTSCTS True SupportsSpecialCharacters False SupportsXOnXOff False SupportsXOnXOffSet False SystemCreationClassName Win32_ComputerSystem SystemName JVALDRON-PC TimeOfLastReset </code></pre>
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    1. COSee my answers at http://stackoverflow.com/questions/2085179/how-can-i-find-out-a-com-port-number-of-a-bluetooth-device-in-c/2096728#2096728 and http://stackoverflow.com/questions/6850965/how-come-getdefaultcommconfig-doesnt-work-with-bluetooth-spp-devices/6997320#6997320
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