Re: libusb and hal

[Matt Davey <mcdavey mrao cam ac uk>]

On Tue, 2007-10-09 at 21:43 -0400, R. Drew Davis wrote:
> On Tue, 2007-10-09 at 19:58 +0200, Tom Billiet wrote:
> > 
> > ----- Original Message -----
> > From: Matt Davey
> > Time: 09-10-07 19:32
> > > 
> > > Tom,
> > > 
> > > Thanks for your work on this already.  Are you saying that the
> > > "usb_device" is only added once, even if you disconnect the z22
> > > physically from your computer?
> > 
> > Exactly.
> > I must say I have not tried if there is some timeout on this, that it
> > will disappear after a time. But even then you would not be able to sync
> > between the timeouts.
> > 
> 
> I don't know beans about USB, but thinking about what you've described
> in this series of e-mails, it seems to me that you need to beware of the
> case of HAL remembering a Palm device that was formerly attached but is
> no longer there.   That in turn makes me think that if HAL is
> remembering a device that is no longer there, then maybe the problem is
> in the HAL logic.   Are the supporters of that code on this mailing list
> or is that a kernel topic?

Drew, I agree.  I haven't had time to try reproducing this yet, but this
feels like a regression in the HAL behaviour.  I know that multiple
libusb / HAL syncing worked just fine for me.  Either it is device
specific or is a regression outside of gnome-pilot.

Tom, what HAL version do you have installed?  It would be great if we
could narrow this down to a HAL change, but I'll fire off a message to
the hal list once I know what version this behaviour has been seen in.

Matt