SERIAL_MODE_INPUT_OPEN
if (!test_bit(SERIAL_MODE_INPUT_OPEN, &drvdata->filemode))
set_bit(SERIAL_MODE_INPUT_OPEN, &drvdata->filemode);
clear_bit(SERIAL_MODE_INPUT_OPEN, &drvdata->filemode);
} else if ((uart->filemode & SERIAL_MODE_INPUT_OPEN)
} else if ((uart->filemode & SERIAL_MODE_INPUT_OPEN) &&
uart->filemode |= SERIAL_MODE_INPUT_OPEN;
uart->filemode &= ~SERIAL_MODE_INPUT_OPEN;