Someone broke USB

Updated a month old FreeBSD-current to top of tree.
Upon rebooting, the usb no longer functions. No
usb mouse.  No usb external hard drive.  Unplugging
and then re-plugging in external drive does not 
cause the drive to spin up.

Logged in as root.`

% usbconfig list
No device match or lack of permissions
% usbsonfig show_ifdrv
No device match or lack of permissions
% usbsonfig dump_all_desc
No device match or lack of permissions
% usbsonfig reset
No device match or lack of permissions

/usr/src/UPDATING does not show any recent entries 
for usb.  

So, how does one get usb working, again?

-- 
Steve