evdev Protocol in RELENG_7

Here is My Question, is it possible to use evdev (the xorg mouse
protocol that may be linux specific)in RELENG_7 with xorg 7.3?

I have a Logitech mx1000 mouse and I can not seem to get xorg to use
the buttons correctly. I have searched google high and low.

the dmesg says it is a 16 button mouse however I only count 12.
whatever the case, the top buttons by the wheel have the same id as
the wheel scroll in xev

if there is an alternate way to use a 12 button mouse in FreeBSD
please point me to the appropriate documentation.

Thank you for any help
Sam Fourman Jr.