ehci not used(?) when connected device turned on later

[Warner Losh]

From: Warner Losh <imp at bsdimp.com>
Subject: Re: ehci not used(?) when connected device turned on later
Date: Tue, 17 Jan 2006 16:29:38 -0700 (MST)

> From: Juergen Lock <nox at jelal.kn-bremen.de>
> Subject: ehci not used(?) when connected device turned on later
> Date: Tue, 17 Jan 2006 23:51:31 +0100
> 
> > Is this a known problem with the 5.4 usb code?
> > 
> > 1. connect an externally powered umass device (eg a harddrive with
> > its own psu) thats turned off
> > 2. boot freebsd
> > 3. turn the device on later
> > 
> >  then it gets only usb 1.1 speed even when ehci is in the kernel.
> > You have to reconnect it _while being turned on_ to get usb2 speed.
> > Same problem if you turn it off after use and later turn it back on
> > while still being connected...
> > 
> >  Is there a fix?  (With linux it works as expected, if that means
> > anything... :)
> > 
> >  Oh, please Cc me with followups, I'm not subscribed on -usb (yet?)
> 
> I have no idea what you are saying.
> 
> ehci is used for me when I plug in my devices, or when I turn them
> on.  Do you have ehci in your kernel?  It was disabled by default in
> 5.4.

Oh, I'm slow today...

I'm pretty sure that -current does the right thing, but I'll double
check tonight.

Warner