On Tue, Jan 23, 2007 at 01:22:39PM -0500, Alan Stern wrote:
> On Tue, 23 Jan 2007, Oliver Neukum wrote:
>
> > I got you into the loop precisely because the bug is related to autosuspend
> > and the log is unclear.
> >
> > The facts as far as I can tell are:
> >
> > With CONFIG_USB_SUSPEND
> > -the device binds to the driver
> > -disconnects itself as as soon as there's IO to the device
> >
> > Without CONFIG_USB_SUSPEND it does not.
> >
> > In fact it just looked so much like a dmesg of those devices that fail
> > with autosuspend that I requested a recompile without autosuspend.
> > It is a mystery to me why this would matter with a driver that does not
> > support autosuspend.
>
> I don't see how it could make any difference, since the log did not show
> any suspends at all, auto or otherwise (except for the OHCI-internal
> suspend before the Treo was connected).
>
> > However, as it seems to, it is important that
> > you know of it. Is it possible that the reference count is not properly
> > propagated through the tree?
>
> No -- in fact, the 2.6.18 kernel used in that log doesn't include USB
> autosuspend support at all.
I also had the same problems with 2.6.17 (stock Ubuntu edgy). Both
computers work fine with the (older) Palm Tungsten C.
> Maybe Dirk should try using 2.6.20-rc5 and see if it makes any difference.
Yes, I could in a few days.
> Also try attaching the Treo to a different computer.
I did. Failed on two different computers. Actually, three if I
include an older Debian stable still running a 2.4 kernel (with a
win4lin patch) which had no problems with an older Treo 300.
So maybe visor.c deserves a second look?
Dirk
--
Hell, there are no rules here - we're trying to accomplish something.
-- Thomas A. Edison
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
