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[fix] components: serial_v2: preserve RT_DEVICE_FLAG_STREAM when reop… #11348

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[fix] components: serial_v2: preserve RT_DEVICE_FLAG_STREAM when reop… #11348

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11 changes: 10 additions & 1 deletion components/drivers/serial/dev_serial_v2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -91,8 +91,17 @@ static int serial_fops_open(struct dfs_file *fd)
if ((fd->flags & O_ACCMODE) != O_WRONLY)
rt_device_set_rx_indicate(device, serial_fops_rx_ind);

flags |= RT_SERIAL_RX_BLOCKING | RT_SERIAL_TX_BLOCKING;

/* preserve RT_DEVICE_FLAG_STREAM if it was set before close */
if (device->open_flag & RT_DEVICE_FLAG_STREAM)
{
flags |= RT_DEVICE_FLAG_STREAM;
}

rt_device_close(device);
ret = rt_device_open(device, flags | RT_SERIAL_RX_BLOCKING | RT_SERIAL_TX_BLOCKING);
ret = rt_device_open(device, flags);

if (ret == RT_EOK)
{
serial = (struct rt_serial_device *)device;
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