> I have tried to pull these two files up into the netbsd-2-0 branch and 
> found that while ohci.c compiles - ehci.c reports EHCI_QH_MPLMASK undefined.
> 
> Questions:
> - is it unwise for me just to pull up these two files,

In this case, yes.

> - what other file do I pull up to correct the ehci compile problem.

Looking at the source-changes archive at:

  http://mail-index.NetBSD.org/source-changes/2004/06/

and checking the recent USB commits, you want to pull up:

  src/sys/dev/usb/ehci.c	1.55 - 1.60
  src/sys/dev/usb/ehcireg.h	1.16
  src/sys/dev/usb/ohci.c	1.147
  src/share/man/man4/ehci.4	1.10 - 1.11

J

-- 
  My other computer also runs NetBSD    /        Sailing at Newbiggin
        http://www.netbsd.org/        /   http://www.newbigginsailingclub.org/