linux-kernel - Re: usb device not showing up

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Date:	Thu, 6 Nov 2008 18:54:11 -0700
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Norbert Preining <preining@...ic.at>,
	Mattia Dongili <malattia@...ux.it>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: usb device not showing up

On Thu, 6 Nov 2008 14:34:53 -0500 (EST), Alan Stern <stern@...land.harvard.edu> wrote:

> I have to wonder...  Did you remove any part of the trace?  Did usbmon 
> malfunction?  Did parts of the initialization for those two buses 
> really get skipped (I can't imagine how)?
> 
> Pete, any ideas?

It is possible for usbmon to lose events. There's a counter to
monitor it, in 0s file. I do not commonly run across such problems,
but it can happen. If it's a problem, one can try to bump the limits
way higher, if RAM allows.

-- Pete
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