KB-29155: Visualizing communication status.

Question:

How can I use the driver to visualize the communication status?

Solution:

In the driver’s folder, there is an icon called TagBrowser. This object has several I/O drivers from the IOKit. In this folder, insert the tag IO.PhysicalLayerStatus from General folder. At runtime, this tag will return the following values:

  • 0 = Stopped
  • 1 = Disconnected
  • 2 = Connected

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