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. I invite you to test out Wireshark's USB capture with different USB devices, and post a comment with your findings.ī DidierStevensLabs.Beware when installing IOUSBFamily log. Which gives us the serial number in response: With this information, Windows will perform a query to obtain the length of string descriptor 3 in US English:Īnd thus Windows can do a query for a 50 bytes long string descriptor with index 3 in US English: The language used for the string descriptors of the USB stick I inserted is US English (0x0409):
In this device descriptor, you can also see the indices for the Manufacturer, Product and SerialNumber string descriptors: 1, 2 and 3.Ī bit later in the capture, you'll see a request for a string descriptor (type 3) with index 0: that actually means an inquiry for the languages used for the string descriptors. Maybe you've already come across VIDs and PIDs, like in this instance ID: USB\VID_0951&PID_16AE\902B341D991AB031991F4C4D The descriptor contains interesting information, like the Vendor ID (VID or idVendor) and Product ID (PID or idProduct). When you start capturing USB traffic and then insert a USB stick, you'll see something like this:įirst we see a request (and response) for the device descriptor.
Wireshark can capture USB traffic, provided you fulfil the necessary requirements.
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