\chapter{Stream devices}
  \paragraph{Introduction}
  This familly is composed of all the devices that threat data as an unaddressed stream. For example SPI and UART are both streams devices, a sofware or hardware FIFO is olso a stream device.

\section{The stream device representation}
The stream device is represented by a standard structure.

\begin{lstlisting}
	struct streamDev
	{
		int writen(void* data,int n);
		int write(void* data);
		int readn(void* data,int n);
		int read(void* data);
		int streamPt;
		void* dev;
	}
\end{lstlisting}