My computer (bought in early 2002) came with USB 1.1 ports only.
I installed a PCI card that gave me two external USB 2.0 ports and got along
with that till recently.
Then, wanting more USB 2.0 ports, I transferred the two-port card to another
computer and replaced it with what I thought when I bought it was a four-port
USB 2.0 card. However, when I took the card out of its package, I saw that
there was one internal USB port, as well as the four external ones.
I thought I'd take advantage of the internal port by attaching one end of a USB
cable to it, running the cable through a hole in the back of the computer case
and then plugging a flash drive into the other end of the cable.
I did that and also plugged a USB hard drive into one of the external ports.
When I booted up, there were icons on my Desktop for both USB drives and each
drive worked properly.
However, when, while the computer was running, I plugged another flash drive
into one of the three vacant external ports, the icon for the first flash drive
disappeared and no icon appeared for the second flash drive.
I shut down, removed the second flash drive and rebooted. Again, I had the two
icons and each drive worked perfectly.
I ran usbview and it told me that I had an EHCI Host Controller with four
ports, not the five I expected. It also listed the two attached USB devices.
The computer dual-boots with Windows XP. I booted into Windows with the two USB
devices attached. I looked at My Computer and saw the two USB drives listed.
They both worked properly. I then plugged the second flash drive into one of
the USB 1.1 ports and was told that I had a VIA Enhanced Host Controller with a
"USB Root Hub (4 ports)", that two of those ports were taken by the USB drives
and that two were vacant and that I should use one of them. Again, I was being
told I had four ports, not the five I expected.
I unplugged the second flash drive from the USB 1.1 port and plugged it into a
vacant external USB 2.0 port. I had My Computer open as I did it. Just as in
Linux, the "Removable Disk" entry disappeared and no other one replaced it.
If anyone can tell me what's going on, I'd be very grateful. Is there something
different about the internal USB port which is causing the above to happen?
Should I not be trying to use it?
Thank you in advance,
Leslie
____________________________________________________
On Yahoo!7
Want to make technology work harder for your business?
http://au.mobile.yahoo.com/mobile-business-solutions/index.html
-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-users
