[Nottingham] Two rather simple questions

[Jason Irwin]

On 23/03/12 12:24, Jason Irwin wrote:
> I shall set about fiddling with things.
This is getting more headache-inducing by the minute.  According to the
manual for my PC, all USB ports are 2.0.  lsusb disagrees.

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 046d:c521 Logitech, Inc. Cordless Mouse Receiver
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 413c:2005 Dell Computer Corp. RT7D50 Keyboard
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0644:0200 TEAC Corp. All-In-One Multi-Card Reader
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

According to some, the receiver simply does not like 1.1 (I can't find
any external ports that connect to bus 001 or 002).  Although why it
behaves in the very specific way it does beats the hell out of me.

All this has brought back memories of one thing: one day, for no reason
I could fathom, when this box was running XPsp3 it began to complain
that I'd plugged a high-speed device into a low-speed port.  Is it
possible for a 2.0 hub to become broken and degrade to a 1.1?  This
being an old Dell Dimension 9200, nothing would really surprise me.

-- 
Jason "likes to make a meal of things" Irwin