diff options
| -rw-r--r-- | components/drivers/serial/serial.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c index c5932df7d9..77f2a645a1 100644 --- a/components/drivers/serial/serial.c +++ b/components/drivers/serial/serial.c @@ -566,13 +566,11 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag) LOG_D("open serial device: 0x%08x with open flag: 0x%04x", dev, oflag); -#ifdef RT_SERIAL_USING_DMA /* check device flag with the open flag */ if ((oflag & RT_DEVICE_FLAG_DMA_RX) && !(dev->flag & RT_DEVICE_FLAG_DMA_RX)) return -RT_EIO; if ((oflag & RT_DEVICE_FLAG_DMA_TX) && !(dev->flag & RT_DEVICE_FLAG_DMA_TX)) return -RT_EIO; -#endif /* RT_SERIAL_USING_DMA */ if ((oflag & RT_DEVICE_FLAG_INT_RX) && !(dev->flag & RT_DEVICE_FLAG_INT_RX)) return -RT_EIO; if ((oflag & RT_DEVICE_FLAG_INT_TX) && !(dev->flag & RT_DEVICE_FLAG_INT_TX)) |