usb2 under 5.2, how to use ehci

[Brian Reichert]

On Sun, Oct 31, 2004 at 06:09:15PM +0100, Graaf, Rob wrote:
> Hi,
> 
> i'm running FreeBSD 5.2.1 (installed right-out-of-the-box)
> and make use of a LaCie external harddisk which is connected
> by usb.
> 
> The usb driver used is uhci, but this supports only usb1,
> which is not fast.
> 
> How can I use ehci, which seems to support usb2?

I went through this very same firedrill recently:

<http://lists.freebsd.org/pipermail/freebsd-mobile/2004-August/004653.html>

After I put 'device ehci' in my kernal. my laptop-to-LaCie throughput was
pretty good:

  # dd if=/dev/zero of=/new/junk bs=4k count=125000
  125000+0 records in
  125000+0 records out
  512000000 bytes transferred in 58.722096 secs (8719035 bytes/sec)

> Anybody can give me directions how replace the ehci?
> 
> Thanks
> 
> Rob de Graaf

-- 
Brian Reichert				<reichert at numachi.com>
37 Crystal Ave. #303			Daytime number: (603) 434-6842
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