Queries various aspects of the state of a serial port.
A serial-port object.
A list of keywords.
The function get-serial-port-state queries various aspects of the state of the serial port associated with
should be a list of one or more of the keywords
. These cause get-serial-port-state to check the DSR and CTS lines respectively.
is a list giving the state of each line in the same order as they appear in the argument
LispWorks Reference Manual - 12 Mar 2008