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

[Ondrej Zary <linux-ZCIryABCsrmttCpgsWEBFmD2FQJk+8+b@public.gmane.org>]

On Thursday 10 June 2010, Oliver Neukum wrote:
> Am Donnerstag, 10. Juni 2010 13:33:57 schrieb Ondrej Zary:
> > On Wednesday 09 June 2010, Oliver Neukum wrote:
> > > Am Mittwoch, 9. Juni 2010 15:40:04 schrieb Ondrej Zary:
> > > > Looking at the patches from archive:
> > > >
> > > > If I understand it correctly, usbtouch_resume submits the irq URB
> > > > only if the input device is open. That will fail with Nexio as it has
> > > > an internal watchdog which needs URBs or the device will reconnect -
> > > > see irq_always (Zytronic seems to need it too).
> > >
> > > Thank you for the review. Does this patch fix the issues?
> >
> > 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.

-- 
Ondrej Zary
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