Plextor PX-EH40L (landisk) power-off button?

[Darth Lists]

Has anyone using the Plextor PX-EHxxL landisk hardware gotten the power 
toggle switch to fulfill its intended purpose?
Under the original Linux-based OS, the switch would send a signal to the 
OS to start a shutdown procedure and once properly shutdown, the OS 
would then power off the device.
Under OpenBSD, this switch does nothing.

Cheers,
/Jason