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From: Norbert Preining <>
To: Alan Stern <>
Cc: Pete Zaitcev <>,
	Mattia Dongili <>,
	Kernel development list <>,
	USB list <>
Subject: Re: usb device not showing up
Date: Thu, 6 Nov 2008 23:57:13 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Hi Alan,

On Do, 06 Nov 2008, Alan Stern wrote:
> Okay.  In the earlier (working) test, the modem showed up on bus 4, not
> bus 2.  Not that it matters much -- the modem didn't show up at all in

Sorry, it is always bus 4, i meant interface (or how do you call it) 2,
bus id 004:002

> this test, on any bus.  Its USB interface seems to be electrically
> disconnected or turned off.


> should start working, but I have no idea what that would be.  It's not 
> a USB issue; as far as USB is concerned the device just isn't there at 

Ok, if it is not an usb issue, I guess I have to hope for some fix in
sony-laptop module. 

> Interestingly, this trace appears to be missing some events.  There's a
> gap between timestamps 4284549076 and 4284645743 (the timestamps are in
> the second column) where we should see the initialization of bus 5 and
> bus 6.  Instead there's a 100-ms delay in which nothing happens,
> followed later on by the second initialization phase for those two
> buses.
> I have to wonder...  Did you remove any part of the trace?  Did usbmon 

No. I sent you the output as it was saved on my hard disk. No editing

> malfunction?  Did parts of the initialization for those two buses 
> really get skipped (I can't imagine how)?

No idea. I can redo any tests you want, but I can guarantee that I
didn't tinker with the usbmon-bad.txt file itself, it was created with
	cat .../0u > usbmon-bad.txt

Best wishes


Dr. Norbert Preining <>        Vienna University of Technology
Debian Developer <>                         Debian TeX Group
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is trying to kill us!'
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  reply	other threads:[~2008-11-06 22:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-03 15:31 Norbert Preining
2008-11-03 19:05 ` Alan Stern
2008-11-04  9:37   ` Norbert Preining
2008-11-04 15:23     ` Alan Stern
2008-11-04 16:17       ` Norbert Preining
2008-11-04 16:36         ` Alan Stern
2008-11-04 21:58           ` Norbert Preining
2008-11-05 16:13             ` Alan Stern
2008-11-06 15:00               ` Norbert Preining
2008-11-06 15:23                 ` Alan Stern
2008-11-06 17:19                   ` Norbert Preining
2008-11-06 19:34                     ` Alan Stern
2008-11-06 22:57                       ` Norbert Preining [this message]
2008-11-07  3:26                         ` Alan Stern
2008-11-07  1:54                       ` Pete Zaitcev

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