Add bps and msb information.  Now output of 'audioctl -f' becomes correct.
--
% audioctl -f /dev/audioctl | grep encoding
encodings=mulaw:8:1:1*,alaw:8:1:1*,ulinear:8:1:1,slinear:8:1:1*,ulinear_le:16:2:1*,ulinear_be:16:2:1*,slinear_le:16:2:1,slinear_be:16:2:1*
play.encoding=mulaw
record.encoding=mulaw
Delete __P macros.