Re: btusb auto suspend

Peter Zijlstra
2009-05-08T20:26:12Z

On Fri, 2009-05-08 at 22:23 +0200, Oliver Neukum wrote:
> Am Montag, 4. Mai 2009 19:29:02 schrieb Marcel Holtmann:
> > Hi Peter,
> >
> > > What is the current status of btusb auto suspend? btusb not having this
> > > feature basically renders BT useless on mobile devices.
> > >
> > > I found some rfc patches and discussion over on linux-pm/-usb but
> > > couldn't find a clear consensus.
> >
> > I think none of the patches apply anymore. So they have to be redone
> > against the latest -rc4 kernel or bluetooth-testing.git.
>
> I am porting forward to Linus' tree. I thought they'd safely wait for
> the next merge window.
>
> > We had some battles with broken Bluetooth hardware that requires to keep
> > the interrupt and bulk URBs in fly, because otherwise the firmware
> > inside the controller can't sync them up and times out. These are all
> > fixed now, but nobody has looked at the auto suspend stuff. Feel free to
>
> It will have to be changed to work with those buggy devices.
> Do you have a pointer to a page describing the problem in detail?
>
> > pick Oliver's patches up and send them for review. If you do so, please
> > use linux-bluetooth@vger.kernel.org since I do miss posting on LKML from
> > time to time.
>
> Peter, are you willing to test?

Sure, I have two laptops with integrated bluetooth to test on.