Hmmm, come to think of it, I get EMI from my UPS. None of my USB devices
or my computer are electrically connected to it, but when it goes on
battery power all of my USB devices stop working. This usually locks up
Windows or requires me to reboot, but Linux recovers nicely. I do not
get this message here, though.
Georg Acher wrote:
>
> On Thu, May 18, 2000 at 03:55:09AM +0000, Mark McClelland wrote:
>
> > >
> > > May 17 09:07:41 jerry kernel: hub.c: already running port 1 disabled by hub
>(EMI?), re-enabling...
> >
> > This line makes me suspicious... I wonder if you are having a hardware
> > problem. I doubt if there is any EMI (ElectroMagnetic Interference)
> > strong enough to cause these problems though.
>
> I added this feature to hub.c, since in my setup (a hub with a TI chip, the
> PC system doesn't matter...) switching on "bigger" devices (oscilloscope, etc)
> causes the hub to disable all ports. Even touching the metal frame of the USB
> connectors with a non connected USB cable can do this(!).
> Under Windows you have to un/replug the devices to get them working again.
> There are some cases, where this re-enable message appears during plugin,
> but it has no negative side effects (as far as I know...).
>
> --
> Georg Acher, [EMAIL PROTECTED]
> http://www.in.tum.de/~acher/
> "Oh no, not again !" The bowl of petunias
>
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Mark McClelland
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