yangsong8-a1 commented on code in PR #21113:
URL: https://github.com/apache/nuttx/pull/21113#discussion_r4477741403
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drivers/serial/serial.c:
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@@ -1669,8 +1700,23 @@ static ssize_t uart_writev(FAR struct file *filep, FAR
struct uio *uio)
*/
uart_disabletxint(dev);
+
+ /* Copy the payload into the TX buffer. Output post-processing only needs
+ * to translate CR (when OCRNL is set) and NL (when ONLCR/ONLRET is set);
+ * every other byte is copied verbatim. So within each iovec segment,
+ * locate the next byte that needs translation, bulk-copy everything before
+ * it with uart_putxmitbuffer(), then handle that one byte. When no
Review Comment:
done, thank you.
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