It is a great tool for a variety of HID products such as mice and keyboards, but not for USB devices that operate in High-speed mode. Unless you are monitoring a HID (human interface device) such as mouse, mostly likely the USB speed exceeds the parameters of the Beagle USB 12 Protocol Analyzer. Thanks for your question! The Beagle USB 12 Protocol Analyzer is a Low Speed and Full Speed USB sniffer that will only capture Low and Full Speed USB device traffic. It detects no USB traffic or enumeration - what am I missing? Response from Technical Support: $ mv /Volumes/Macintosh\ HD/System/Library/Extensions/IOUSBFamily.kext /Volumes/Macintosh\ HD/Users/recovery-backupĥ) Copy back the original: $ cp -a /System/Library/Extensions/IOUSBFamily.kext /Volumes/Macintosh\ HD/System/Library/Extensions/IOUSBFamily.I am using the Beagle USB 12 Protocol Analyzer to monitor a High-speed USB bus. New one (broken): /Volumes/Macintosh\ HD/System/Library/Extensions/IOUSBFamily.kextĤ) Move the broken module away: $ mkdir /Volumes/Macintosh\ HD/Users/recovery-backup Original: /System/Library/Extensions/IOUSBFamily.kext Here's how I fixed it, but please be extremely careful not to break your machine:ġ) Hold CTRL+R and turn on your machine, this will boot into the "Recovery mode"ģ) Find out where is your original IOUSBFamily kernel extension and the one on the Macintosh HD are. It installed without any warnings but it turned out that this includes IOSUSBFamily.kext kernel module that's not going to work on my machine and this disabled all the USB devices (which includes laptop's own keyboard and trackpad). I had the same issue after installing USB Prober from a wrong OS version on my machine.
Here is the steps to reload from recovery: If that does happen you must reload the proper kext manually from recovery:
The OS X versions must match or else all usb devices including builtin touchpad/keyboard could not work.
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