Verse Of The Day:
But after he had considered this, an angel of the Lord appeared to him in a dream and said, “Joseph son of David, do not be afraid to take Mary home as your wife, because what is conceived in her is from the Holy Spirit. She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins.” — Matthew 1:20-21 (NIV)

PostHeaderIcon USB-to-Serial adapter for Mac

I have an older IO Gear USB-to-Serial adapter that I have used for a long time.   When I purchased it I was only using Windows laptops and never had a problem getting drivers and getting it to work.  When I switched to a MacBook Pro a couple of years ago, I was able to get it working by downloading the Mac drivers.  However, after upgrading to El Capitan I wasn’t able to get the adapter to work.  I did some searching and came across the site listed below.  The command that is described in the post didn’t work, but the comment by James Morris did get the adapter working.

  1. So reboot the Mac into recovery mode.  Press Command+r durring reboot.
  2. Click Utilities, Terminal
  3. Type: csrutil status
    It will probably come back and say it is “enabled”.
  4. Type:  csrutil disable
  5. Reboot

You should now be able to open terminal and type ls /dev and see the device.  My adapter shows up as tty.UC-232AC.

Hope this helps someone else.



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