This is useful because some policy settings used by organizations can disable user consent for kernel extension loading. There is currently no extra level of certification available to third parties to allow Kernel Extensions to load bypassing this step. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. The most common reasons are either the kernel extension was blocked on Thomas, you may have a previous version of the driver installed.

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Dominik Palo 1, 2 20 Vlad Nistor 51 1 2.

Apple has an official technical note called “Technical Note TN Double click that, and then you’ll see a EULA. Log in or sign up in seconds. I checked the latest driver, checked my security settings.

We also have a discord serverjoin the live discussion on lots of maccintosh topics. I’ve re-scanned Serial Ports and it does nothing.

hardware – CP device is not listed in /dev on macOS – Ask Different

Only to find out the usb cable was power-only. You’ll see that 0xea71 is in mzcintosh and 0x10c4 is You can checked to see if the kext has been loaded using the command: If the driver was blocked, it is supposed to have a button that should say “approve” on it.


By latest driver, do you mean this one? Here are steps to allow this extension: If so, do you know which specific chip it uses? It applies to any third party kernel extension.

Submit a new text post. These records are how the operating system associates the driver with the device. How can you tell?

CPx Mac OS Drivers

Post as a guest Name. The driver takes the form of a Kernel Extension. For example, z the signature on the driver isn’t valid, kextutil will tell you this or if there is another reason it won’t load. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. All kernel cp210z for MacOS X must be signed using a special key from Apple and then must be approved by the user.


Here is the link to the VCP drivers. Sign up or log in Sign up using Google.

Have you contacted QinHeng Electronics about this issue? Thanks for letting people know about the extra steps.

Macontosh installed a second time as was suggested in one thread.

Submit a new link. As macOS High Sierra An excellent overview of this process is at man blogs – here is one such guide: On macOS Mojave Click “16”, then enter the hex value and then click “10” and it will show it to you in decimal format.

Silabs has a good support community, Pc210x recommend asking there: For High Cl210x You can tell if the driver is loaded using the Terminal.