NI-DAQmx Base 3.7, USB 6212, & Yosemite

Support
1

Hi Chris,

We ordered a few new USB 6212 units and noticed that Macs (one of our early 2009 iMacs as well as a recently purchased Mac Pro) running Yosemite don’t seem to recognize the DAQ. I haven’t tested any other devices or versions of NI-DAQmx Base. Have you experienced this issue?

Thanks,
Evan

2

Hi Evan,

See the section on device driver restrictions in my MWorks and El Capitan post. In short, you should be able to get things working by executing the following command in Terminal and then restarting your Mac:

sudo nvram boot-args=kext-dev-mode=1

The fact that you need to do this is an unfortunate consequence of having to stick with NI-DAQmx Base 3.7, as the kernel extensions in later releases are properly signed. At least it’s an easy fix on Yosemite. (The El Capitan workaround is more difficult and has wider-reaching consequences.)

Cheers,
Chris