PL2303_PORT_OPEN
ASSERT(plp->pl_port_state == PL2303_PORT_OPEN);
ASSERT(plp->pl_port_state == PL2303_PORT_OPEN);
if (plp->pl_port_state != PL2303_PORT_OPEN) {
if ((plp->pl_port_state == PL2303_PORT_OPEN) && (data_len) &&
if ((plp->pl_port_state == PL2303_PORT_OPEN) &&
if ((plp->pl_port_state == PL2303_PORT_OPEN) &&
plp->pl_port_state = PL2303_PORT_OPEN;