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neuralengine

macrumors regular
Original poster
Jul 13, 2020
168
88
I was looking through the Console troubleshooting USB audio and noticed this log message that shows up multiple times a second, every second:

Code:
/kernel (/System/Library/Extensions/IOUSBHostFamily.kext/Contents/MacOS/IOUSBHostFamily)

000336.758908 dfu-util@(null): AppleUSBHostUserClient::start: missing entitlement com.apple.ibridge.control

I don't think this is related to my audio issue but I find it odd that this is happening multiple times a second, every second. The console does not flag it as an error or a fault.


The computer is a 2020 27" iMac running Monterey 12.0.1. This was happening on the latest Big Sur, too.

Here's what I've tried:

Unplugged all USB devices

Unplugged everything

Uninstalled the drivers for my USB audio interface

OS reinstall

Revive T2 Firmware

What I find odd is the dfu-util bit, as it would suggest that something is trying to update the firmware over USB? dfu-util is not installed on this computer though, and the actual process is 'kernel'.

I have not been able to find any information on the internet as most search results seem to be hackintosh-related.

Does anybody have any thoughts on what may be going on here and if I should be trying to fix this somehow?

Screen Shot 2021-12-12 at 1.20.53 PM.png


Update

Figured it out by process of elimination, it was a third-party app.
 
Last edited:
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