Re: introduction of blacklist for autosuspend

"Jon Smirl" <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On 2/14/07, Alan Stern <[email protected]> wrote:
> On Tue, 13 Feb 2007, Jon Smirl wrote:
>
> > On 2/13/07, Alan Stern <[email protected]> wrote:
> > > It's possible that after resuming, the device is still functional but in
> > > some weird state.  Perhaps sending it the right sort of HID messages would
> > > get it fully working again.  But I don't want to mess around with
> > > experimenting and writing all sorts of special-purpose programs to test it
> > > -- particularly since a simple reset will do the job.
> >
> > So what's the plan? A blacklist entry that says reset needed on resume?
>
> Maybe.  At the moment I don't have a definite plan.
>
> I did run another test.  Before suspending, the device responds to the
> dial and the mute button by sending messages to the computer.  After
> resuming, it does not send any messages when I twist the dial or press the
> button.  I think we should assume the device can't resume properly and
> will always need a reset.

If the device is reset a message should go up into usb audio to give
it a clue to reset the volume, etc.

-- 
Jon Smirl
[email protected]

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