USB 2.0 external hard drive only 1.000MB/s transfers

Hans Petter Selasky hselasky at c2i.net
Tue Sep 20 16:32:00 PDT 2005


On Wednesday 21 September 2005 00:15, Chris Richards wrote:
> Hi,
>
> I was lucky enough to have a Belkin USB 2.0 PCI card (NEC chipset) in
> another PC (WinXP) so I swapped them over thinking I would be on easy
> street now - no difference.
>
> It's like the companion controllers "usb0" and "usb1" don't get recognised
> as being USB 2.0 capable.
>
> A "usbdevs -v" output for each slot on the NEC chipset USB 2.0 PCI card is
> below... and another dmesg output.
>
> Cheers.
>
> -Chris
>

Have you tried to re-plug your device once? Then see if it is still USB 1.0 
full speed ?

You should see something like this:

# dd if=/dev/da0 of=/dev/null bs=64000
792+0 records in
792+0 records out
50688000 bytes transferred in 8.145711 secs (6222661 bytes/sec)

port 6 addr 122: high speed, power 200 mA, config 1, Flash Disk(0x2168), 
USB(0x0ea0), rev 2.00

--HPS


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