title: BLE devices not detected by CSR8510 chip
body: <p>I am experiencing lot of troubles detecting BLE devices with a CSR8510 chipset. I don't have much knowledge in bluetooth hardware/stack and osx systems. I made <strong>a lot</strong> of research to solve my problem but I can't find any information specifically related to my issue.  </p>
  
  <p>Here is all the informations about my setup :</p>
  
  <p>The dongle is plugged in a Macbook Pro late 2011 (mavericks). I made all the necessary to make the dongle work : </p>
  
  <ul>
      <li>HCI bootmode</li>
      <li>com.apple.bluetooth.plist deletion and reboot</li>
      <li>I used Bluetooth Explorer to change the Host Controller (default internal chipset -> CSR8510)</li>
  </ul>
  
  <p>Now the dongle is fully recognized by the system, I can use my Magic Mouse (all functionalities work), but I am not able to detect my BLE chest belt (<a href="http://www.runalyzer.com/fr/blue.html" rel="nofollow">Runalizer blue</a>).<br>
  When I launch a scan with the Device>Low Energy Devices panel in Bluetooth Explorer or the demo app indicated by the belt manufacturer I don't find anything.<br>
  Demo app : <a href="https://developer.apple.com/library/mac/samplecode/HeartRateMonitor/Introduction/Intro.html" rel="nofollow">https://developer.apple.com/library/mac/samplecode/HeartRateMonitor/Introduction/Intro.html</a>  </p>
  
  <p>To be fully exhaustive my Xperia SP works perfectly with the belt.</p>
  
  <p>I tried to dig into kernel extensions and I've found in System/Library/IOBluetoothFamily.kext/PlugIns two interesting kext :</p>
  
  <ul><li>CSRBluetoothHostControllerUSBTransport.kext</li><li>CSRHIDTransitionDriver</li></ul>
  
  <p>I do not know if it is relevant or if it could help me but since they start by "CSR" I thaught that it may be related.</p>
  
  <p>I hope someone can help me. It is bothering me so much because I am not able to do the job I was willing to do (gather data from the belt and statistical processing). </p>
  
  <p>Thanks for your attention.</p>