This command is used only in MASTER mode to make a request to slave nodes or to itself. A frame will be transmitted with prefixed <brea><sync> header, the id will be automatically converted in pid.

LIN RQ <id>

Sending a request to an external node

LIN RQ 10
OK
LIN TX 50 
LIN RX F1 CA 43

Sending a request to itself ( SR must previously loaded in memory please ref to LIN SR )

LIN RQ 11
OK
LIN TX 11 DE AD BE EF C4