![]() $ 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. New one (broken): /Volumes/Macintosh\ HD/System/Library/Extensions/IOUSBFamily.kextĤ) Move the broken module away: $ mkdir /Volumes/Macintosh\ HD/Users/recovery-backup 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. 3) 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). The three modes of speed are indicated as follows: Detailed USB tree view of high speed mass storage device 0x01 (Full-Speed) 0x02 (High-Speed) 0x03 (SuperSpeed) As you can see in the pictures, the selected device is a High Speed device. Here's how I fixed it, but please be extremely careful not to break your machine: 1) Hold CTRL+R and turn on your machine, this will boot into the 'Recovery mode'. Allows to use the program with fast USB devices, such as USB disks, USB cameras, etc. I had the same issue after installing USB Prober from a wrong OS version on my machine. The USB sniffer mode allows you to capture data exachange between other program and an external device Faster interpretation of USB traffic. Here is the steps to reload from recovery: ![]() As a standalone board, the USB-KW24D512 can also be. ![]() If that does happen you must reload the proper kext manually from recovery: Packet sniffers are essential for wireless network development allowing over-the-air traffic monitoring. The OS X versions must match or else all usb devices including builtin touchpad/keyboard could not work. ![]()
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