SER_RS485_TERMINATE_BUS
if (rs485->flags & SER_RS485_TERMINATE_BUS)
SER_RS485_RX_DURING_TX | SER_RS485_TERMINATE_BUS,
SER_RS485_TERMINATE_BUS | SER_RS485_RX_DURING_TX,
SER_RS485_TERMINATE_BUS)
rs485->flags &= (SER_RS485_ENABLED | SER_RS485_MODE_RS422 | SER_RS485_TERMINATE_BUS);
!!(rs485->flags & SER_RS485_TERMINATE_BUS));
!!(port->rs485.flags & SER_RS485_TERMINATE_BUS));
SER_RS485_TERMINATE_BUS |
port->rs485_supported.flags |= SER_RS485_TERMINATE_BUS;