After you complete your download, move on to Step 2. To get the CS4208 driver, click the green download button above. I just dont get the functioning headset Mic as posted above.įurther checking the driver setup inf file, I believe AppleCirrusLogic didnt add the mic section for CS4206B.ĬS4208 driver has defined the mic interface eMicInTopo and eMicInWave while CS4206 driver doesnt have this section.Īdd the two sections from the 4208 drivers to the 4206B and test.How to Update CS4208 Device Drivers Quickly & Easily Step 1 - Download Your Driver I can confirm that I dont get the same results with the 6.0 drivers on Windows 10. Very happy camper here Should note that I am running Windows 10 with Bootcamp 6 on a late 2013 Retina Macbook Pro. Surprisingly, I plugged in my iPhone headset (which is TRRS) and noticed windows installing some drivers. This is definitely a limitation of the Windows drivers as per Microsofts own admission in the link provided. I also tried inverting polarity, changing impedance across the relevant terminals and so on.Īgain, everything behaves as expected in OS X, but not in Windows. I tried uninstalling and reinstalling audio drivers with and without the jack plugged in. I read the entire datasheet for the cs4207 chip so I have a good idea of what is going on on the hardware side. I just want an external Mic In without resorting to a USB or other type of external converter. I will also check the Event Viewer on W8.1 and post the Device Manager screen when I have access to the 2012 MBP. Have you tried Windows 8 (or 8.1) The iPhone TRRS works correctly on a 13 2012 MBP and detects the devices. It works with the Apple HeadphoneMicrophone combination well, but other similar headsets may have issues. That being said, Apple provides a driver for the cs420x chips in their BootCamp packages.Īssuming that it reads the status of the audio chip and transmits both the jack detection event and the associated values to the HDAudio.sys driver, it should be possible for the BootCamp driver to emulate those two trigger events slightly spaced in time that HDAudio.sys needs for now. So, it would seem that Microsoft has to rectify the way their HDAudio.sys behaves with respect to these TRRS jacks. In this configuration, HDAudio.sys sees only one detection event associated with the headphones, and there is no way a second event associated with the microphone can be triggered physically. It appears that the problem stems from Microsofts HDAudio.sys driver: The workaround mentioned in the article above does not work due to the particular way the TRRS jack and the audio chip (cs4206, cs4207 and cs4208) are wired in the MacBooks: only a single jack detection event is possible, and if one is detected, a value is set in the chip, which reports the presence of a microphone.

Cirrus logic cs4206b windows 10