"The value of prtInputIndex corresponding to the input subunit
which will be used when this input subunit is emptied. A value
of zero(0) indicates that auto input switching will not occur
when this input subunit is emptied. A value of (-1) means other.
The value (-2) means 'unknown' and specifically indicates that
an implementation specific method will determine the next input
subunit to use at the time this subunit is emptied. The value
(-3) means input switching is not supported for this subunit."
Based on the new description above, I am once again of the opinion that
the prtInputAutoSwicth object is uneccessary. Did I forget anything
from the discussion Friday afternoon? Any other comments?