*-l* '<log level>'::
the verbosity level of libam7xxx output (0-5)
-*-p* '<power level>'::
- power level of device, between 0 (off) and 4 (maximum) +
+*-p* '<power mode>'::
+ the power mode of device, between 0 (off) and 4 (turbo) +
WARNING: Level 2 and greater require the master AND
the slave connector to be plugged in.