Am Donnerstag, 1. März 2007 20:13 schrieb Alan Stern:
> On Thu, 1 Mar 2007, Oliver Neukum wrote:
>
> > Am Dienstag, 27. Februar 2007 17:03 schrieb Alan Stern:
> >
> > > Oliver, I've noticed in the past that khubd tries too hard to enumerate a
> > > new connection. The new scheme and the old scheme are both tried twice,
> > > and each try has two attempts to read the device descriptor, where each
> > > attempt can loop twice, each loop with up to three calls to
> > > usb_control_msg() and a device reset, with timeouts as long as 1 second.
> > >
> > > In really bad cases this can tie things up for close to a minute. We
> > > ought to be able to do better. Some of the loops should be eliminated and
> > > some of the timeouts decreased.
> >
> > Something like this?
>
> Actually I had in mind something simpler, like getting rid of the
> GET_DESCRIPTOR_TRIES loop for i (or reducing it to one attempt using the
> new scheme and one attempt using the old scheme) and getting rid of the
> SET_ADDRESS_TRIES loop for j, both in hub_port_init().
I would prefer to try very hard once. This is what this patch does.
Regards
Oliver
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