Re: Cannot shutdown power use from built in webcam in thinkpad T530 questions]

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On Sun, Sep 22, 2013 at 04:32:08PM -0400, Alan Stern wrote:
> > I'm somehow thinking there is a driver or hardware problem when the device
> > does get stuck in a mode where it won't sleep properly again until the next
> > reboot (just unloading/loading the driver does not fix this).
> 
> That's quite possible.  But if it is a driver problem, wouldn't 
> unloading and reloading the driver fix it?
 
You'd think that but it hasn't so far with this one device.

> > > You might get more information from a kernel with CONFIG_USB_DEBUG 
> > > enabled.  Especially if you add
> > > 
> > > #define VERBOSE_DEBUG
> > > 
> > > to drivers/usb/core/driver.c before the first #include line.
> > 
> > Do you think thaty would help debug the problem above, or not really? I'm
> 
> There's no way to know in advance.
> 
> > starting to think that the USB layer is not at fault, although I could be
> > wrong I suppose.
> 
> You asked for advice on things to try, and I suggested something.  
> That's the best I can do.

Understood, just making sure this was still potentially useful considering
what I found out since my last message.

Thanks for your help,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  
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