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add invoke callback after serial DMA transmit complete in serial.c
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2387 bbd45198-f89e-11dd-88c7-29a3b14d5316
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@ -439,4 +439,10 @@ void rt_hw_serial_dma_tx_isr(struct rt_serial_device *serial)
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{
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serial->dma_flag = RT_FALSE;
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}
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/* invoke callback */
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if (serial->parent.tx_complete != RT_NULL)
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{
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serial->parent.tx_complete(&serial->parent, RT_NULL);
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}
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}
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