OSX El Capitan and FTDI USB-to-serial adapter

This post is about fixing the USB-to-serial FTDI adapter on OSX 10.11. Since I upgraded to El Capitan 10.11, my USB-to-serial adapter had stopped working.

Before 10.11 (El Capitan), I didn’t have to download the driver to get my FTDI adapter to work. Unfortunately, now, I have to. I really don’t want to mess with the system to get a single USB adapter to work.

Download this driver

Once the driver has been downloaded, install and restart your OSX 10.11 computer. After the restart, verify that you are able to see the adapter by opening your terminal and enter ls /dev/ | grep serial as shown below

nixmbpr:PYTHON Karlo$ ls /dev/ | grep serial

If you don’t see an entry that means that your system doesn’t see the adapter.

Hope you find this post helpful.


About networkshinobi

My name is Karlo, I work as a Network Engineer. A little about myself. I started as a PC gamer back when I was in high school. PC gaming became my addiction and pushed me to learn more about computers. Slowly got my some certifications and landed an IT Tier 1 Helpdesk job. This job opened the door for me to work to push further on my certifications and going deeper into the IT world. My goal was to get my Cisco CCIE Routing and Switching, but my journey for CCIE has changed due to I always ended up working on non-Cisco network appliances. Therefore, I have to pivot and decided to jump to the dark side and go with Juniper. Hopefully, I would get my JNCIE in the near future. All the entries/post I made are based on my views, opinion and for educational purposes only. If you see some mistakes, feel free to drop some comments. I would appreciate all the helpful comments. Thanks
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