[Soekris] net5501 USB port speed?

[Bernd Walter]

On Tue, Jan 22, 2008 at 11:43:06AM +0100, Marc Balmer wrote:
> Andreas Schweigstill wrote:
> > Hello!
> > 
> > Malcolm Herbert schrieb:
> >> NetBSD-4.0 and what I thought was a USB2.0 external caddy ...
> > 
> > USB 2.0 doesn't neccessarily mean that a device is high-speed mode
> > capable. There also have been made some minor changes in the USB
> > specification for low- speed and full-speed mode, so there are lots
> > of manufacturers who advertise their product as USB 2.0 devices when
> > they just meet those minor specification changes.
> > 
> > This was done especially during a short time after the introduction
> > of USB 2.0, but also done nowadays.
> 
> The AMD Geode CS5536 companion chip supports four USB 2.0 compliant
> ports that support low speed, full speed, and high speed connections.
> 
> Port 4 can be configure as USB 2.0 high speed or full speed device.
> 
> I do not know how the ports are wired on the 5501, though.

There is nothing special to be done for it.
You have high and full/low speed controllers sharing the same physical
connection and the board manufacturer has to do nothing very special.
However there are a few devices on the market, which in some cases fail
with the high-speed negotiation.
This can be because of bad cabling or bad power decoppling or something
else.
Does the device connect at high speed on other computers?

-- 
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