On Sunday 08 October 2006 04:39, Oliver Neukum wrote: > Am Sonntag, 8. Oktober 2006 09:20 schrieb David Brownell: > > > If a device is always opened, as mice are, it will not be suspended. > > > Yet they can be without any data to deliver forever. > > > > In 2.6.19-rc1 read Documentation/power/devices.txt about runtime > > suspend states. Then think about how why mouse in a runtime suspend > > state, with remote wakeup enabled, looks externally ** EXACTLY ** like > > a mouse that's fully active .... > > I've done so. And I've read the HID spec. It just says that a mouse > may support remote wakeup, not what should wake it up. A device > that wakes only if a button is clicked is within spec. >
And that's what some devices do. Apologies for a non-USB example, but since we are talking about input devices and it would be nice to have the rules consistent across all hardware interfaces I think it's OK... Synaptics PS/2 touchpad can be put into a sleep mode where it only reacts on button presses. While this behavior is reasonable for system- wide suspend it would hardly work for autosuspend. -- Dmitry ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
