diff options
| author | Runcheng Lu <[email protected]> | 2026-04-28 15:36:40 +0800 |
|---|---|---|
| committer | Rbb666 <[email protected]> | 2026-05-20 10:05:02 +0800 |
| commit | ec9eaadf85dfa60e6327de37bde8c4f04bfbde5d (patch) | |
| tree | 0156e059f29a2ec1bf9d86e24c2c253460d18f97 /components/drivers | |
| parent | ad205d2bf36f009a723288638f22fd162e6f327f (diff) | |
[fix] components: serial_v2: preserve RT_DEVICE_FLAG_STREAM when reopening serial device
- The serial_fops_open function closes and reopens the serial device,but the RT_DEVICE_FLAG_STREAM flag was not preserved across the close/open cycle. This change saves the STREAM flag before close and restores it during reopen to ensure consistent behavior.
Signed-off-by: Runcheng Lu <[email protected]>
Diffstat (limited to 'components/drivers')
| -rw-r--r-- | components/drivers/serial/dev_serial_v2.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/components/drivers/serial/dev_serial_v2.c b/components/drivers/serial/dev_serial_v2.c index 78d590857c..d8cc2e0cb5 100644 --- a/components/drivers/serial/dev_serial_v2.c +++ b/components/drivers/serial/dev_serial_v2.c @@ -92,8 +92,17 @@ 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; |