===== LIN TX =====
This command can be used if LIN OPEN FREE command was previously sent. It will used to transmit a frame with a prefix formed by special characters <break><sync>; in the same way of a master.

=== Synopsis ===
  LIN TX <pid> [D0..D7] [checksum]
 
== Example ==
Requesting id=0x10 => pid=0x50
  LIN TX 50
  OK
  LIN TX 50 
  LIN RX F1 CA 43

== Note ==
  -Pid parity validity is responisibility of user
  -If payload ([D0..D7]) is present then checksum must to be added by user