Messages in this thread | | | Date | Tue, 19 Jul 2005 12:22:06 -0700 | From | Pete Zaitcev <> | Subject | Re: USB debouncing? |
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On Tue, 19 Jul 2005 18:24:25 +0200, DervishD <lkml@dervishd.net> wrote:
> I have a new MP3 player, and when I disconnect it from the USB > port, my logs says: > > <30>Jul 19 18:11:05 kernel: usb.c: USB disconnect on device 00:07.3-1 address 2 > <27>Jul 19 18:11:06 kernel: hub.c: connect-debounce failed, port 1 disabled > > What is that 'connect-debounce' for? Is the port damaged? Am I > doing anything wrong?
The ports are not getting completely disabled. The wording is poor. If you plug something else, hub gets a connect change, khubd will allow another debounce cycle and accept whatever happens.
In this case, when you're pulling the plug the hub receives a momentary reconnect, so the software things something else was plugged. I think perhaps the resistor harness is not good in the device, or perhaps something is wrong with the connector.
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