plugctl -V (return code: 14)
raw1394 - couldn't get handle: Invalid argument This error usually means that the raw1394 driver is not loaded or that /dev/raw1394 does not exist.
plugctl (return code: 0)
plugctl: [-p port}] [-n node] <plug>.<attribute>[=<value>] The equal sign determines whether you want to get or set the value of a plug's attribute. <plug> is one of oMPR, iMPR, oPCR[n], or iPCR[n] (case insensitive). Please supply a numerical index for [n]!