Xcardmon provides GUI to control the PC-Card slots power supply when
you employs PAO driver package on your FreeBSD box.  This utility
retrieved several main functions from the xcardctl command that was
created by Takamiti Kimura <takamiti@tsden.org> and rewrote with
Athena widget set.

And also included is support for Xaw3d and neXtaw widget sets.
  % make USE_XAW3DLIB=YES to use Xaw3d
  % make USE_NEXTAWLIB=YES to use neXtaw

PAO home page is http://www.jp.FreeBSD.org/PAO/