Fix documentation for usart_putc()
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@ -439,8 +439,8 @@ static inline void usart_disable_all(void) {
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/**
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* @brief Transmit one character on a serial port.
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*
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* This function blocks until the character has been successfully
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* transmitted.
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* This function blocks until the character has been queued
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* for transmission.
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*
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* @param dev Serial port to send on.
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* @param byte Byte to transmit.
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