Re: USB 2.0 speed
On Fri, 22 Oct 2004 13:06:38 +0300, Alexandros Papadopoulos
> I have an external HDD case, that is USB 2.0 certified. When I boot my
> machine with KNOPPIX and have the USB case plugged, I get fast transfer
> rates to my external disk (10MB/sec or so).
> When I boot my regual installation of Debian (sarge), with both kernels
> 2.4.25 and 2.6.8 (installed via apt-get), the same modules are loaded
> (uhci-hcd and friends), but the system can only exchange data with the
> external drive VERY slowly (less than 500kb/sec).
> usbview shows me at that time that the external USB device (correctly)
> advertises speeds of up to 480Mbps, but actual file transfers are
> extremely slow.
USB 2.0 should use the EHCI driver. Try preloading the module and see
Paolo Alexis Falcone
- USB 2.0 speed
- From: Alexandros Papadopoulos <firstname.lastname@example.org>