Messages in this thread | | | Date | Fri, 3 Aug 2007 10:53:21 -0400 | From | Dave Jones <> | Subject | Re: [linux-usb-devel] [PATCH] USB: Only enable autosuspend by default on certain device classes |
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On Fri, Aug 03, 2007 at 04:43:16PM +0200, Jiri Kosina wrote: > On Fri, 3 Aug 2007, Matthew Garrett wrote: > > > Windows will autosuspend hubs, bluetooth devices, HID devices > > Hi Matthew, > > are you sure about windows suspending the HID devices in runtime? I have > never seen LEDs of USB keyboard connected to windows host to go off after > some time of not using it.
Not so sure about keyboards, but I've seen the LEDs on USB mice dim or go off after a few seconds of inactivity under Windows, but under Linux they stay on.
> We have been playing with runtime autosuspend of HID devices, are > currently postponed the full support, as it turns out that many devices > don't support this feature properly (probably due to not being tested in > Windows).
Interesting. Which devices did you notice failing? Was it a case that they would sleep and not come back out of that state?
Dave
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