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Why is there a need for a USB Low speed Hub for USB Topology Test RRS feed

  • Question

  • It's very difficult to get a USB low speed hub in these days so is user, why there's a need to test one. Does it mean we'll not be able to pass HCK test when our very last low speed hub decided quit on us. 
    • Edited by Ming2 Wednesday, October 10, 2012 7:41 AM
    Wednesday, October 10, 2012 7:40 AM

Answers

  • The requirements listed in HCK 2.0 are:

      • One USB 3.0 hub. Must load the latest firmware for the SuperSpeed hub to work. Must implement consistent Container ID for the SuperSpeed and high-speed hub nodes.
      • One USB 2.0 (high-speed) hub
      • One USB 1.1 (full-speed) hub

       Here is the link to the requirements.  http://msdn.microsoft.com/en-us/library/windows/hardware/hh998271.aspx

      Full speed hubs are very much still for sale.  The purpose for the full speed hub is to ensure the device can operate at the lower speed when plugged into a lower speed topology.   

    Wednesday, October 10, 2012 4:49 PM

All replies

  • The requirements listed in HCK 2.0 are:

      • One USB 3.0 hub. Must load the latest firmware for the SuperSpeed hub to work. Must implement consistent Container ID for the SuperSpeed and high-speed hub nodes.
      • One USB 2.0 (high-speed) hub
      • One USB 1.1 (full-speed) hub

       Here is the link to the requirements.  http://msdn.microsoft.com/en-us/library/windows/hardware/hh998271.aspx

      Full speed hubs are very much still for sale.  The purpose for the full speed hub is to ensure the device can operate at the lower speed when plugged into a lower speed topology.   

    Wednesday, October 10, 2012 4:49 PM
  • I read somewhere that it could be possible to use keyboards and possibly monitors that have USB ports on them for the full speed hub. I know all those that I have around here are full speed and not high speed.
    Thursday, October 25, 2012 7:46 PM