Re: [rfc]your patch to deal with devices that need continous data traffic

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On Thu, 2014-09-04 at 13:36 +0200, Johan Hovold wrote:
> On Thu, Sep 04, 2014 at 12:44:37PM +0200, Oliver Neukum wrote:
> > Hi,
> > 
> > I also got a problem with such a device and I took your patch
> > and applied it to this device. What do you think? The only
> > substantial change I made was not counting unrequested input
> > for autosuspend.
> 
> Ah, good to know there are more devices that need this quirk.

Actually, I'd prefer you to be the only one. ;-)
But shared misery is better than single misery.

> I got side-tracked with other stuff, but I should be able to submit the
> patch this week (just want to look through it once more first).

Good.

> Not sure the mark-last-busy needs to be moved, though. The device has
> already been woken up, and might as well stay unsuspended for a while
> longer should further events occur.

Why? Remote wakeup will be disabled. It would be a waste of power.

[..]
> > @@ -79,6 +79,7 @@ static const struct hid_blacklist {
> >  	{ USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
> >  	{ USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1610, HID_QUIRK_NOGET },
> >  	{ USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1640, HID_QUIRK_NOGET },
> > +	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_ALWAYS_POLL },
> 
> You'd want to use USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE here, or?

Yes. Thank you.

	Regards
		Oliver


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