fwcontrol(8) on FreeBSD
The text d79b541d8459, as FreeBSD 11.2-RELEASE shipped it.
FireWire control utility
Flags it lists
-
-M -
-R -
-S -
-c -
-d -
-f -
-g -
-i -
-l -
-o -
-p -
-r -
-s -
-t -
-u