How can I set one of root usb 2.0 port to work as usb 1.1 only?

G

Guest

I connect a usb 2.0 hub to a usb 2.0 root port. It automatically connect at
high speed. If I want the usb 2.0 hub work at full speed(usb 1.1), Is there
any way to set the root port work at full speed? Thank you very much!
 
G

Guest

The root port itself has to be USB 2.0 compliant. To see if yours is, go to
device manager and check if you have an "Enhanced" usb controller.
 
G

Guest

Thank you for your kind help. My PC have one Enhanced usb hub, four usb1.1
hub and total 8 ports. Is there any way to set only 2 ports to fixed use
usb1.1 hub only?
 
J

Jonny

Basically, you want to slowdown 2 USB ports to 1.1 speed only is what I
surmise. No, it don't work that way. Its all or nothing for the enhanced
hub drive which governs all 1.1 hubs that are 2.0 capable. Why do you want
to slow down two ports?
 
G

Guest

Thanks Jonny.

Because I have 8 usb1.1 devices in the system. I have purchased 2 usb2.0
hub. It sometime got problem. After I set the motherboard to disable usb2.0,
the problem are gone. I think the TT inside the usb2.0 hub cause this
problem. I also can insert a usb1.1 hub between root port and usb2.0 hub to
solve this problem. I just want to know whether software can be set.
 

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