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Re: USB device resets when attached to Cascading hubs. Why?



Please tell us what kind of hubs you are using in the scenario described below. Are they self powered or bus powered? Are they USB 2.0 compliant or are they old USB 1.1 compliant hubs? If you could tell us the brand name, that would be good as well.

Rhoads Hollowell
USB Software Team
Apple Computer, Inc.

On Oct 4, 2006, at 8:27 AM, rohit dhamija wrote:

============
Problem Scenerio:
a) I cascade 2 hubs.
b) I attach my 2 devices to the last hub.
c) Now when I plug-out my 1 usb bulk device, the other device resets itself !!!
The other device resets itself on removing the first device and my communication with the application also resets at this point of time
:( Why ??


"APPLE_Machine_ROOTHUB<==>ONE_HUB<==>SECOND_HUB<==>My 2 usb devices are attached here"
============



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 >USB device resets when attached to Cascading hubs. Why? (From: "rohit dhamija" <email@hidden>)



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