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Re: [linux-usb-devel] USB mouse autosuspend




On Tue, 3 Jul 2007, Oliver Neukum wrote:

> Am Dienstag, 3. Juli 2007 schrieb Jiri Kosina:
> > OK, it seems that vendors of usb keyboards probably rely too much on fact 
> > that the keyboards could be quite slow and flaky without anyone 
> > complaining under normal load, and therefore implement the things very 
> > badly. Oliver, I currently think that usb hid autosuspend would bring much 
> > more problems than it would give us.
> 
> I see the problems. Is there a way we can get the CPU into C2 while we
> have HID running?

The CPU can't stay in C2 while DMA is active, right?  Then no, we can't 
do it.

Alan Stern


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