On Thursday 10 November 2011 05:08:30 Shah, Vishal wrote:
> usb_alloc_device: Failure selecting configuration index
> 0:USB_ERR_TIMEOUT, port 1, addr 2 (ignored)\r\r\n


The set config message is sent on the control endpoint. The set config message 
doesn't have any data stage, so the USB stack is waiting for the status stage 
callback. Either that is caused by:

1) Lost interrupt on EHCI


2) Device never sends the status stage (needs a bus analyzer for this).

Quirks you can set in /boot/loader.conf:

hw.usb.ehci.lostintrbug: 0
hw.usb.ehci.iaadbug: 0

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