Re: Problem with an external usb HD - slow usb



On Wed, 2010-03-10 at 10:28 -0300, Luigi Castro Cardeles wrote:
2010/3/9 Roberto Ragusa <mail@xxxxxxxxxxxxxxxx>:
Luigi Castro Cardeles wrote:
2010/3/9 Mikkel <mikkel@xxxxxxxxxxxxxxxx>:

slow speed
high speed
full speed

so:
low-speed - uhci
full-speed - ohci
high-speed - ehci

When the USB group created the 2.0 specifications it made
a good effort to confuse "good speed" (480Mbit/s) with
"awful speed" (12Mbit/s) devices, so to manage to sell
all the ancient stuff by putting a USB2.0 label on them.

This thread clearly demonstrates how successful they were.
:-(

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Roberto Ragusa mail at robertoragusa.it
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but using the same external hd on windows is faster then on linux...
at that point, i am trying to understand that :D
the device is: philips case sde3275fc/97
still struggling with that.

It's likely that the disk came with a special driver for Windows,
whereas the Linux version is using a generic driver. I'd guess the
answer is probably in the Windows driver code, but of course it will be
binary and proprietary so it's of no use to anyone.

poc

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