USB 2.0

  • Thread starter Thread starter Samuel
  • Start date Start date
Thank you
Samuel

Paul said:
"lsusb" is part of Linux.

This program is for Windows. You can learn a bit more
about your plugged in USB devices with this. But this
requires some interpretation (a developer tool, not really
for end users). The top download on the page, labeled "x86",
would be suitable for 32 bit Windows usage.

http://web.archive.org/web/20070516...com/whdc/device/stream/vidcap/UVCViewdwn.mspx

In terms of checking in Device Manager, this web page
tells you to look for USB entries, with the word "Enhanced"
in the title. Enhanced means the host has a USB2 driver
installed and is ready for USB2 capable devices.

http://www.usbman.com/Guides/checking_for_usb_2.htm

The highlighted entry in this picture, has the
word "Enhanced" in it, meaning the USB host in question,
is ready to support USB2 rate operation when a USB2
capable device is plugged in.

http://www.usbman.com/Guides/checki5.jpg

Also, in that JPG picture, I can tell there
are two devices used for USB. That computer
has an Intel Southbridge, with USB2 on it. The
computer also has a USB2 PCI card, with NEC chip
on it. So more than one host chip can be present
in a computer. In fact, on some older computers,
the chipset has a USB 1.0 only interface, and
to give USB2 ports, they added a second chip that
was USB2 capable. Such a motherboard would also have
a Device Manager list, pretty similar to the above
JPG picture. Then the problem is, identifying which
USB connector is a USB2 ready one. That is
when a tool like UVCView can help you, to decide,
at the instant a USB device is plugged in, what the
interface offered as an operating speed.

Currently, the available tools don't tell you everything
there is to know about USB. Which is unfortunate. There
are still some questions that cannot be answered with the
(poor) utilities available. UVCView, for example, is
about as good as it gets.

Paul
Click to expand...
 
Samuel said:
Windows or Linux
Click to expand...

"lsusb" is part of Linux.

This program is for Windows. You can learn a bit more
about your plugged in USB devices with this. But this
requires some interpretation (a developer tool, not really
for end users). The top download on the page, labeled "x86",
would be suitable for 32 bit Windows usage.

http://web.archive.org/web/20070516...com/whdc/device/stream/vidcap/UVCViewdwn.mspx

In terms of checking in Device Manager, this web page
tells you to look for USB entries, with the word "Enhanced"
in the title. Enhanced means the host has a USB2 driver
installed and is ready for USB2 capable devices.

http://www.usbman.com/Guides/checking_for_usb_2.htm

The highlighted entry in this picture, has the
word "Enhanced" in it, meaning the USB host in question,
is ready to support USB2 rate operation when a USB2
capable device is plugged in.

http://www.usbman.com/Guides/checki5.jpg

Also, in that JPG picture, I can tell there
are two devices used for USB. That computer
has an Intel Southbridge, with USB2 on it. The
computer also has a USB2 PCI card, with NEC chip
on it. So more than one host chip can be present
in a computer. In fact, on some older computers,
the chipset has a USB 1.0 only interface, and
to give USB2 ports, they added a second chip that
was USB2 capable. Such a motherboard would also have
a Device Manager list, pretty similar to the above
JPG picture. Then the problem is, identifying which
USB connector is a USB2 ready one. That is
when a tool like UVCView can help you, to decide,
at the instant a USB device is plugged in, what the
interface offered as an operating speed.

Currently, the available tools don't tell you everything
there is to know about USB. Which is unfortunate. There
are still some questions that cannot be answered with the
(poor) utilities available. UVCView, for example, is
about as good as it gets.

Paul
 
Somewhere on teh intarweb "Samuel" typed:
How can I know if I have USB 2.0 installed on my computer?
Click to expand...

If you have XP installed, plug in a USB 2.0 flash stick. If Windows tells
you that you could use a faster interface you haven't got USB 2.0.
 
How can I know if I have USB 2.0 installed on my computer?
Click to expand...

Check your system specs (for an OEM system) or motherboard
manual (or the manufacturer's product webpage) to find out
without use of an OS.

Runnning windows, look in Device Manager, at the bottom in
the USB category it will read Enhanced instead of Standard,
or there will be an entry(s) that actually state USB 2.
 
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