On Fri, 26 Aug 2005, Singh, Brijeshkumar wrote: > Alan, > > Thanks for help. I have connected one hub to my port 2 and plugged two > memory keys and one floppy drive in the hub, the below is devices file. > > ------------------------------------------------ > root@(none):~# cat /proc/bus/usb/devices
> T: Bus=04 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 28 Spd=480 MxCh= 4 ----------------------------------^ This is your external hub. It's plugged into port 5 (4+1) of your computer, not port 2. > S: Manufacturer=NEC Corporation > S: Product=USB2.0 Hub Controller > T: Bus=04 Lev=02 Prnt=28 Port=00 Cnt=01 Dev#= 29 Spd=12 MxCh= 0 ----------------------------------^ This is the Citizen floppy drive. It is plugged into port 1 (0+1) of the external hub. > S: Manufacturer=CITIZEN > S: Product=X1DE-USB > T: Bus=04 Lev=02 Prnt=28 Port=02 Cnt=02 Dev#= 33 Spd=480 MxCh= 0 ----------------------------------^ This is the IBM memory key. It is plugged into port 3 (2+1) of the external hub. > S: Manufacturer=IBM > S: Product=USB 2.0 Memory Key > T: Bus=04 Lev=02 Prnt=28 Port=03 Cnt=03 Dev#= 32 Spd=480 MxCh= 0 ----------------------------------^ This is the Lexar memory key. It is plugged into port 4 (3+1) of the external hub. > S: Manufacturer=LEXAR MEDIA > S: Product=JUMPDRIVE SPORT > The above device file does not clearly lists of port, I was expecting > the port = 2 of all three device marked as "<<<< DEVICE <<<" Why should all the ports be equal to 2? Each device is plugged into a different port. They can't all be plugged into the same port! Alan Stern ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
