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@@ -296,7 +296,7 @@ static rt_ssize_t rt_serial_update_write_index(struct rt_ringbuffer *rb,
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* @param size Receive data buffer length.
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* @param size Receive data buffer length.
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* @return Return the final length of data received.
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* @return Return the final length of data received.
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*/
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*/
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-rt_size_t _serial_poll_rx(struct rt_device *dev,
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+rt_ssize_t _serial_poll_rx(struct rt_device *dev,
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rt_off_t pos,
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rt_off_t pos,
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void *buffer,
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void *buffer,
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rt_size_t size)
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rt_size_t size)
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@@ -343,7 +343,7 @@ rt_size_t _serial_poll_rx(struct rt_device *dev,
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* @param size Transmit data buffer length.
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* @param size Transmit data buffer length.
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* @return Return the final length of data received.
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* @return Return the final length of data received.
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*/
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*/
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-rt_size_t _serial_poll_tx(struct rt_device *dev,
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+rt_ssize_t _serial_poll_tx(struct rt_device *dev,
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rt_off_t pos,
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rt_off_t pos,
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const void *buffer,
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const void *buffer,
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rt_size_t size)
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rt_size_t size)
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jonas