Hi Alan,
Yes, I think it works as you expected.
I have CONFIG_USB_SUSPEND and CONFIG_USB_DEBUG, and
the behaviour is:
If ehci-hcd is not loaded but only uhci-hcd, suspend
and resume works just fine with and without USB
devices plugged in.
If ehci-hcd and uhci-hcd is loaded , suspend and
resume works as expected if there is no USB device
plugged at suspend/resume time, or if there are both
uhci (USB 1/1.1) and ehci (USB 2) devices.
If there are only uhci devices (USB 1/1.1) when
suspending, they are not seen upon resume, unless I
unplug/replug them again.
Hmmm, interesting.
Thanks,
Paul
--- Alan Stern <[EMAIL PROTECTED]> wrote:
> On Wed, 5 Jan 2005, Paul Ionescu wrote:
>
> > Hi Alan,
> >
> > I just compiled a new kernel with both
> > CONFIG_USB_SUSPEND and CONFIG_USB_DEBUG, and now
> it
> > works if nothing is plugged in USB when I suspend
> the
> > machine.
> > If I have something plugged in at suspend time,
> after
> > resume it is not there anymore, and I have to
> > pull/plug the device again.
>
> Just out of curiosity, does the same thing happen
> with CONFIG_USB_SUSPEND
> if you rmmod ehci-hcd before suspending? Does a
> device plugged in to the
> UHCI controller continue to work after you resume?
>
> Alan Stern
>
>
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