On Thu, Nov 27, 2008 at 3:20 AM, Herbert Graf <mailinglist4@farcite.net> wrote:

> Personally USB3 will be welcome; but I think people miss the point when
> they only consider current USB2 usage. The bandwidth USB3 will supply
> with allow for applications that either barely work now (the USB2 video
> cards that are now available), or simply don't exist right now (i.e. how
> about adding an extra CPU to your system for video transcoding,
> connected to your PC through USB3?)

Yeah there are a lot of new things you can do with USB 3 and the
protocol tries to help on that front to help the throughput.

http://www.lvr.com/usb3faq.htm
SuperSpeed traffic can travel in both directions at once (dual simplex).
Instead of having the host poll IN endpoints, devices initiate notifications
when they have something to send and thus free the bus for other traffic.

Bulk transfers can use a streaming protocol for faster performance.

And there are other benefits of USB 3 other than the higher speed.
https://www.usb.org/phpbb/viewtopic.php?t=14169
1) Power management
2) Legal host-host cable

As always, there will be many bad USB device out there due
to the complexity of the USB protocol. It is meant to be easy
to the end users and thus put the burdens on the developers.
However, this does not mean that USB 2 or USB 3 specficication
itself is bad. In fact, majority of the certified USB hardware
and driver work well. Most of the problematic hardware device
do not have official USB certification. Many of the problematic
Windows USB drivers do not have WHQL certification.

Xiaofan
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