Re: [linux-usb-devel] [PATCH] USB: Only enable autosuspend by defaulton certain device classes

From: Jiri Kosina
Date: Fri Aug 03 2007 - 11:34:08 EST


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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/