Re: usb device not showing up

From: Alan Stern
Date: Thu Nov 06 2008 - 22:27:16 EST


On Thu, 6 Nov 2008, Norbert Preining wrote:

> 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

Yes, okay. That's bus 4, address 2.

> > 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.

I hope it works out.

> > 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
> involved.

It must be like Pete said: Some events just got lost because not enough
memory was allocated to usbmon. Fortunately those missing events had
nothing to do with the hso problem.

Alan Stern

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