diff options
| -rw-r--r-- | components/drivers/serial/serial.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c index 3aad9e4ab7..645d083283 100644 --- a/components/drivers/serial/serial.c +++ b/components/drivers/serial/serial.c @@ -641,6 +641,13 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag) serial->serial_rx = RT_NULL; } } + else + { + if (oflag & RT_DEVICE_FLAG_DMA_RX) + dev->open_flag |= RT_DEVICE_FLAG_DMA_RX; + else if (oflag & RT_DEVICE_FLAG_INT_RX) + dev->open_flag |= RT_DEVICE_FLAG_INT_RX; + } if (serial->serial_tx == RT_NULL) { @@ -676,6 +683,13 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag) serial->serial_tx = RT_NULL; } } + else + { + if (oflag & RT_DEVICE_FLAG_DMA_TX) + dev->open_flag |= RT_DEVICE_FLAG_DMA_TX; + else if (oflag & RT_DEVICE_FLAG_INT_TX) + dev->open_flag |= RT_DEVICE_FLAG_INT_TX; + } /* set stream flag */ dev->open_flag |= stream_flag; |