SER_RS485_ADDR_DEST
if (rs485->flags & SER_RS485_ADDR_DEST) {
SER_RS485_ADDR_DEST,
(rs485->flags & (SER_RS485_ADDR_RECV|SER_RS485_ADDR_DEST)))
if (!(rs485->flags & SER_RS485_ADDR_DEST) && rs485->addr_dest)