Re: [0000/0003]full power management for usb touchscreens

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Am Freitag, 18. Juni 2010 20:34:03 schrieb Ondrej Zary:
> On Friday 18 June 2010 20:22:07 Oliver Neukum wrote:
> > Am Donnerstag, 10. Juni 2010 16:13:51 schrieb Ondrej Zary:
> > > > > I haven't tested the patches before. Now I tested them and the Nexio
> > > > > touchscreen does not play well with suspend. It always reconnects
> > > > > after resume from STR or hibernation. Autosuspend is probably never
> > > > > activated at the URBs are submitted continuously.
> > > >
> > > > I see. Can you compile with CONFIG_USB_DEBUG and send me the log?
> > >
> > > This can't be fixed - no matter what you do, the device reconnects if you
> > > stop talking to it.
> >
> > Have you tried setting it back to config 0?
> 
> No, I haven't. It reconnects even if there's no driver loaded (e.g. older 
> kernel). I don't know if kernel sets configuration on all USB devices upon 
> connect (even if there's no driver).

Yes, the kernel sets a configuration if the power budget allows it.
You can set it back to 0 through sysfs and see what happens.

	Regards
		Oliver
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