Rockbox mail archive
Subject: Re: Some USB 2.0 questions
From: Michael Schopferer (Michael.Schopferer_at_stud.uni-karlsruhe.de)
> Yup, it's the NEC chip. It is up and running now in my GNU/Linux
> system and I get a read speed (reading a collection of files) of 8.3
> Mbyte/s (66.4 Mbit/s). Slower than the theoretical limit of 480
> Mbit/s, but much faster than USB 1.1 speed of 12 Mbit/s. I assume the
> disk itself cannot transfer data any faster.
This is obviously a behavior of PCI adapters. With onboard USB2.0 you
can transfer 13Mbyte/s and more. I've got testet three different PCI
cards. The ones with VIA or NEC chipset worked fine with up to
There is also ALI with an USB2.0 chipset. But it didn't work under
WIN(98/XP). With my Recorder 20 I got only USB1.1 transfers.
Michael Schopferer *** Michael.Schopferer_at_stud.uni-karlsruhe.de
Page was last modified "Jan 10 2012" The Rockbox Crew