Xcode app cannot see the driver anymore on Big Sur

Question

Created Oct ’20

Replies 3

Boosts 0

Participants 2

My app uses an external PCI board connected with the thunderbolt cable to a 2019 MacBook Pro (Big Sur beta 10). The strange thing is that the external example apps coming with the driver can communicate with it. The same apps compiled with Xcode 12.2 beta cannot communicate with the driver even it is the same code.
When I installed the driver together with the example apps a window appeared that these software come from an external source and the usage must be granted in the security settings. I did it and therefor the apps work fine.
Is there maybe a similar setting now in Xcode where I must allow the compiled app to communicate with third party drivers? The code of the app was unchanged and worked with a previous macOS version.

Boost

Answer 1

DTS Engineer OP

Apple

Oct ’20

Is there maybe a similar setting now in Xcode where I must allow the
compiled app to communicate with third party drivers?

There is not.

It’s hard to say what’s causing this problem but there’s a clear way forward here: Pick a sample app, find the code where it’s trying to communicate with the driver, set a breakpoint there, step through that code to see where things go wrong.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

0

Answer 2

DTS Engineer OP

Apple

Oct ’20

Oh, there is another option: Talk to the vendor to see if they’ve anything to say about macOS 11 beta compatibility. They may have already done this work.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

0

Answer 3

Arnfried Griesert OP

Oct ’20

Ok if there is no new setting in Xcode for giving access to third party drivers then the problem must be somewhere else. I am already in contact with the vendor.

0