[maemo-developers] [maemo-developers] speeding up MMC (with success)

From: Koen Kooi koen at dominion.kabel.utwente.nl
Date: Sun Oct 1 15:06:29 EEST 2006
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Frantisek Dufka schreef:

> Yes, unfortunately current USB mass storage functionality seems to use
> only USB 1 speed so transfer over USB still has ~800KB/s limit. I wonder
> why USB 2.0 is not used. It is mentioned in N770 specs
> http://europe.nokia.com/A4145105 and OMAP 1710 should support USB OTG
> (which is IMO superset of USB 2.0 specifications). Yet when usb cable is
> inserted kernel says something about full speed config. Unfortunately
> full speed is 12Mbps USB 1.1 speed. USB 2.0 is called high speed.

usb 2.0 high speed = 12Mbps
usb 2.0 full speed = 480MBps

welcome to usb marketing speak :(

regards,

Koen
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