On Mon, May 14, 2007 at 01:54:50PM +0200, bardo wrote:
> On 5/14/07, James Rayner <[EMAIL PROTECTED]> wrote:
> > to be honest. I think it's a stupid idea.
> 
> I don't think it's stupid. I think that *ATM* it shouldn't be
> implemented for the reasons you explained. I agree that
> CONFIG_TIMER_STATS should never be in the official kernel, but I hope
> that CONFIG_USB_SUSPEND will someday, when software problems are
> fixed, make it.
> In particular, I'd like to comment on the two points I don't fully agree with:

I still think it's stupid. The standard kernel should cater fine to
laptops. If there's a patch you want, request it, and it will most
likely be merged if it is worthwhile. 

> > - You could save the aforementioned 1w, just by unloading your usb
> >   driver. Far better solution than a kludgy config option.
> 
> Yes. And you wouldn't charge your phone/ipod/whatever. I'd rather put
> that 1W in my ipod than wasting it.

This option suspends/resumes USB peripherals. If there's no peripherals
attached, then no power is wasted. So if you want to charge your ipod,
go for it, plug it in. The power isnt flying into /dev/null.

It does not mention 'automatically' suspending idle devices, so you have
to manually power down these devices via sysfs, or use software to do so
for you. Might be easier to unplug them, and given that most laptop users dont 
use
many usb peripherals on the road anyway, the use cases for this option
are limited, and certainly not worth the downsides.

James

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