cvs commit: src/sys/dev/usb umass.c

Bill Paul wpaul at FreeBSD.ORG
Wed Mar 26 20:46:49 PST 2003

> THE USB200M is a USB 2.0 device, which seems to be using an
> ASIX Electronics AX88172. The datasheet for this chip is at:
> I also put a copy at:
> The only problem with this chip is that I don't think FreeBSD supports
> any USB 2.0 controllers yet. Am I wrong? It's sort of pointless to wish
> for support for a USB 2.0 device if we don't even have a USB 2.0 stack.

Ok, minus 10 points for me for not realizing that USB 2.0 devices
were backward compatible with USB 1.x controllers/hubs. ASIX appears
to have a USB 1.x version of this chip as well (Ax88170) with the
same programming API.

Of course, I don't actually have any of these pieces of hardware myself.
I guess I could stop by CompUSA on the way home tonight...

Now look what you went and started.

-Bill Paul            (510) 749-2329 | Senior Engineer, Master of Unix-Fu
                 wpaul at | Wind River Systems
      "If stupidity were a handicap, you'd have the best parking spot."

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