usb 2.0

  • Thread starter Thread starter bob
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B

bob

Hi,

If i find USB Enhenced Host Controller in the device manager, does it means
all the usb ports can run at usb 2.0 speed. or still maybe some of them can
only run at a lower speed i.e. usb 1.0

thanks
 
bob said:
Hi,

If i find USB Enhenced Host Controller in the device manager, does it means
all the usb ports can run at usb 2.0 speed. or still maybe some of them can
only run at a lower speed i.e. usb 1.0

thanks
Click to expand...

You can get some idea from the UVCView utility. This utility was written
by Microsoft, but has been removed from their site. They also contacted
web.archive.org and had an archived copy removed that I used to point people
at. We're down to two private sites now with copies.

*******
ftp://ftp.efo.ru/pub/ftdichip/Utilities/UVCView.x86.exe
http://www.users.on.net/~fzabkar/USB_IDs/UVCView.x86.exe

File size is 167,232 bytes.
MD5sum is 93244d84d79314898e62d21cecc4ca5e

This is a picture of what the UVCView info looks like.

http://www.die.de/blog/content/binary/usbview.png

Some information on the parameters seen in UVCView.

http://www.beyondlogic.org/usbnutshell/usb5.htm
*******

UVCview reports on USB ports on the computer. It won't extend its
reach to ports on an external hub. It only reports the ports which
are on the computer itself.

If you see as many USB 1.1 entries, as you see USB 2.0 entries,
then chances are, all the ports support USB2 equally.

If you give some identifying info about the computer make and
model, or the motherboard make and model, it may be possible
to determine what the system ships with. There are a couple
"transition" systems, where half the ports are USB 1.1 only,
and half are USB2 capable. On modern systems for at least
the last five years, they should all be USB2.

With regard to separate PCI USB cards, there are some that
are USB 1.1 only. I have one in my junk box, with a 2 port Opti
chip on it. But the vast majority of PCI USB cards
in circulation now, should be USB2 capable.

Paul
 
Not necessarily, you may have two sets of USB hardware. But you could
plug a USB 2.0 device into each port to test.
 
bob said:
Hi,

If i find USB Enhenced Host Controller in the device manager, does it
means all the usb ports can run at usb 2.0 speed. or still maybe some of
them can only run at a lower speed i.e. usb 1.0
Click to expand...

All ports of enhanced controller can run at 2.0 speed (unless you have
another controller that is 1.1 only)

--pa
 
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