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SubjectRe: [linux-usb-devel] [PATCH] USB: Only enable autosuspend by default on certain device classes
On Fri, 3 Aug 2007, Adam Kropelin wrote:

> Although I have no proof immediately at hand, I suspect at a minimum HID
> power class devices should be blacklisted from autosuspend. Given the
> spotty USB implementations on many such devices I'd be surprised if
> suspend worked reliably.

I agree here.

> Plus if you're connected to such a device for monitoring purposes you're
> probably powered by it as well, so you have little to gain from suspend
> even if it works.

I currently don't have any HID UPS by hand to verify, but I'd be surprised
if they would advertise remote wakeup capability ... ?

Thanks,

--
Jiri Kosina
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