- I own a couple of these "fine" Logitech webcams. Something *is* changing in
the UVC-driver, because the driver I had until yesterday - a couple of weeks
old - could run the Ultra Vision and the Fusion for a period of half a minute
and up to three, four or even five minuttes.
The latest UVC-driver runs for one to three seconds, so something has been
changed, which influences this by an order of magnitude. These scenarios are
absolutely identical for my instances of the Ultra Vision and the Fusion.
One wonders how Logitech circumvents the problem in their Windows drivers.
One wonders *when* manufacturers implement reflashability of their monitors,
webcams, etc.
-----
Please keep up the good work.
Regards
Morten Sabroe Mortensen
-----Oprindelig meddelelse-----
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] På vegne af Laurent Pinchart
Sendt: 12. august 2007 12:01
Til: Stefan Monnier
Cc: [email protected]
Emne: Re: [Linux-uvc-devel] Patch for USB problem with Logitech webcams?
On Sunday 12 August 2007, Stefan Monnier wrote:
> > The patch Evgeny mentioned has never been posted to this list.
>
> Hmmm... the email I link to from the little blurb I added to the wiki does
> seem to contain a version of his patch.
The have been a few patches floating around, but none of them fixed the
problem. They helped for some users and didn't help for others. Evgeny said
he was working on a "universal" patch, but that one has never been posted.
> > To be honest, the Logitech hardware/firmware bug is pretty nasty, and I'm
> > not sure if it's possible to fix it with a host-side hack only.
>
> I don't need a fix, I just need a workaround.
>
> > The bug should have been fixed in latest Logitech webcams but I haven't
> > been able to test them yet.
>
> That won't help me unless Logitech replaces them (or distributes a new
> firmware with a tool to update the old one).
The webcams aren't re-flashable. As for replacing them... I can't speak for
Logitech of course, but I'm pretty much sure to know what they would say :-)
Best regards,
Laurent Pinchart
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