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Old 12-29-2011, 09:31 AM
Javier Perez
 
Default Slow USB port - enabling high speed hubs.

Hi
I am passing a lot of info from my USB pendrive to the hard drive

I am using FC16 (Linux pepewin 3.1.6-1.fc16.x86_64 #1 SMP Wed Dec 21 22:41:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux )

I am curious, why if I have a USB 2.0 full speed device --supposedly 480*Mbit/s (60*MB/s), I only see a transfer speed on the jobs notification window of 600 KiB/s


I have an Intel DG31PR motherboard with 8 USB2.0 ports. The controller chip is an Intel 82801GB (ICH7).
I see the note about "not running at top speed, connect to a high speed hub", but how do I enable the high speed hub if as far as I know, they all are supposed to be high speed hubs?



[*** 1.622334] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[*** 1.622336] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[*** 1.622337] usb usb2: Product: UHCI Host Controller

[*** 1.622339] usb usb2: Manufacturer: Linux 3.1.6-1.fc16.x86_64 uhci_hcd
[*** 1.622340] usb usb2: SerialNumber: 0000:00:1d.0
[ 5264.333018] usb 2-2: new full speed USB device number 2 using uhci_hcd
[ 5264.468024] usb 2-2: not running at top speed; connect to a high speed hub

[ 5264.498030] usb 2-2: New USB device found, idVendor=0930, idProduct=6545
[ 5264.498034] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5264.498036] usb 2-2: Product: DataTraveler 112
[ 5264.498037] usb 2-2: Manufacturer: Kingston

[ 5264.498039] usb 2-2: SerialNumber: XXXXXXXXXXXXXXXXXXXXXXXXXXXXx
[ 5264.503044] scsi6 : usb-storage 2-2:1.0

The device is directly connected to a USB port on the back of the computer (to make sure it is directly connected to the motherboard, nothing in between).

--
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*|O O|* pepebuho@gmail.com
*~~~~ * * Javier Perez
*~~~~* * * * * While the night runs
*~~~~* * * * * toward the day...

* m m** * * Pepebuho watches
* * * * * ** ** from his high perch.

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