I want to realize the following feature on macOS when a USB device (Camera/Mic/Speaker) is connected: 1, When a third-party video conferencing app is not in a meeting, ensure the app defaults to using the USB device (Camera/Mic/Speaker). 2, When a third-party conferencing app is in a meeting, ensure the app automatically switches to the USB device (Camera/Mic/Speaker). Does MDM or Automatic Assessment Configuration support the requirement? Is there other available solutions?

Hi eskimo I ran SampleEndpointApp according to your introduction steps, but install failed, any suggestion: Failed to install the extension ❌ Invalid extension configuration in Info.plist and/or entitlements: System extension com.example.apple-samplecode.SampleEndpointAppRKJVFVKFG3.Extension.systemextension does not appear to belong to any extension categories

How can I get some samples of using CoreMedia I/O to realize "hide" build-in camera?

Hello Kevin, According to your suggestion 1, I can disable build-in camera before a third party app opens it, however I can’t disable it after the camera is opened, so the camera can be used on the situation, which can‘t satisfy my requirement. do you have any other suggestion? thanks.

Hope apple pay attention to us developers' feedbacks.

Thanks, Kevin. I am developing a macOS app that manages USB camera/mic/speaker access in real time—switching to a designated USB on connection and restoring the previous device on disconnection—without any user interaction or restarting third-party conferencing apps (e.g., Microsoft Teams). Monitor USB plug/unplug events. Automatically switch to a target device (by VID/PID) when connected. Restore the previously active device when the USB device is removed.