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drivers/serial/serial_dma.c: Still need reset xmit buffer when meet TCOFLUSH. This is an amendment to 8fb19a4359.

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ligd
2019-11-07 06:39:41 -06:00
committed by Gregory Nutt
parent 33898ef551
commit 6710ba47d8
1 changed files with 5 additions and 2 deletions
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drivers/serial/serial_dma.c
+5 -2
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@@ -206,10 +206,13 @@ void uart_xmitchars_done(FAR uart_dev_t *dev)
/* Move tail for nbytes. */ /* Move tail for nbytes. */
txbuf->tail = (txbuf->tail + nbytes) % txbuf->size; txbuf->tail = (txbuf->tail + nbytes) % txbuf->size;
xfer->nbytes = 0;
xfer->length = xfer->nlength = 0;
} }
/* Reset xmit buffer. */
xfer->nbytes = 0;
xfer->length = xfer->nlength = 0;
/* If any bytes were removed from the buffer, inform any waiters there /* If any bytes were removed from the buffer, inform any waiters there
* there is space available. * there is space available.
*/ */