On Thu, 1 Jun 2006, Andrew Morton wrote:
> On Thu, 1 Jun 2006 10:58:43 -0400 (EDT)
> Alan Stern <[email protected]> wrote:
>
> > As an alternative, we could allow an "over-budget window" of say 10%.
>
> That, plus we should provide a suitable i-know-what-im-doing user override,
> with the appropriate warnings, as well as a printk which directs users to
> this option when we decided to disable their device.
The user override already exists, as do the appropriate warnings. Daniel
Drake just added a printk explaining why the device was not configured,
although it doesn't tell how to configure the device by hand. Perhaps a
FAQ entry at www.linux-usb.org would be appropriate.
> The power supply spec is a conservative minimum, whereas the device spec is
> a worst-case maximum. One would expect a lot of devices will work OK when
> run "out of spec".
>
> (Goes away and pats all his 240V plugpacks which are happily working off 110V).
They probably will. The question is, how far out-of-spec should the
kernel allow by default? 200% is likely to be too far (your plugpacks
notwithstanding).
Alan Stern
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