Finding USB instances!!

Jayaraghavendran · 06-12-2006, 05:52 AM

Hi,

How to find out the number of USB instances on a machine?

lsusb lists three, but I can see only two physical ports on my machine. Which is the other instance?

Also, lsusb -v -s {busNum)

DeviceNum) shows manufacturer detail as "3 Linux 2.6.5-7.191-smp uhci_hcd".What does this mean? How can the manufacturer be linux?

Please clarify.

Thanks in advance.

Regards,
Jayaraghavendran.K

imagineers7 · 06-12-2006, 06:55 AM

Hello jay,

Quote:

Originally Posted by jay

iManufacturer 3 Linux 2.6.10-1.741_FC3 uhci_hcd
iProduct 2 UHCI Host Controller
iSerial 1 0000:00:1d.1

Is this the same thing you are talking about?

Linux is manufacturer because it has provided the driver which has not been provided by th UHCI Controllers man. If that man. had provided it, it would have embedded its name in driver.

Hope this clarifies it

Jayaraghavendran · 06-13-2006, 02:28 AM

But incase of Linux 8 it is returning 0 for manufacturer. Why is this so?

Also, is there an ioctl call for finding out the manufacturer's name & vendor's name?

imagineers7 · 06-14-2006, 06:07 AM

Hello Jay,

There must be some call to know that but I just dont know.

If you come to know please post it here

imagineers7 · 06-14-2006, 06:13 AM

Hi jay,

Forgot to tell you that I have never used redhat 8