diff --git a/Makefile b/Makefile
new file mode 100755
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,58 @@
+
+VERSIONMJ=1
+VERSIONM=0
+BUILD=1
+lIBFILE=liblppserial.so.$(VERSIONMJ).$(VERSIONM).$(BUILD)
+CurrentPath="$(shell pwd)"
+
+
+
+all:dirs
+	gcc -c RS232.c -fPIC  -Wall  -o ./tmp/RS232.o
+	gcc -shared -Wl,-soname,liblppserial.so.$(VERSIONMJ) -o ./bin/$(lIBFILE) ./tmp/RS232.o
+	ln -sf $(CurrentPath)/bin/$(lIBFILE) $(CurrentPath)/bin/liblppserial.so
+	ln -sf $(CurrentPath)/bin/$(lIBFILE) $(CurrentPath)/bin/liblppserial.so.1
+	ar rs $(CurrentPath)/bin/liblppserial.a ./tmp/RS232.o
+	cp RS232.h ./include/lppserial.h
+	@echo "lppserial compiled" 
+	
+	
+	
+install:
+	sudo cp ./bin/$(lIBFILE) /usr/lib/$(lIBFILE)
+	sudo cp include/* /usr/include/
+	ln -sf /usr/lib/$(lIBFILE) /usr/lib/liblppserial.so
+	ln -sf /usr/lib/$(lIBFILE) /usr/lib/liblppserial.so.1
+	cp $(CurrentPath)/bin/liblppserial.a /usr/lib/liblppserial.a
+	ldconfig
+	
+	
+	
+dist:
+	tar -cvzf ./../lppserial.tgz ../lppserial
+	
+	
+	
+	
+clean:
+	rm bin/*
+	rm tmp/*
+	rm include/*
+
+
+
+distclean:
+	rm -f -R tmp
+	rm -f -R bin
+	rm -f -R include
+
+
+
+
+dirs:
+	mkdir -p tmp
+	mkdir -p bin
+	mkdir -p include
+	
+	
+	
diff --git a/RS232.c b/RS232.c
new file mode 100755
--- /dev/null
+++ b/RS232.c
@@ -0,0 +1,242 @@
+// SOPSUYSI_RS232.c - Function to communicate on Serial Port
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <string.h>
+#include <errno.h>
+#include "RS232.h"
+
+
+speed_t rs232cfspeed(unsigned int BaudeRate)
+{
+	if(BaudeRate<25)
+		return B0;
+
+	if(BaudeRate<67)
+		return B50;
+			    
+	if(BaudeRate<93)
+		return B75;
+				    
+	if(BaudeRate<123)
+		return B110;
+				    
+	if(BaudeRate<142)
+		return B134;
+				    
+	if(BaudeRate<175)
+		return B150;
+				    
+	if(BaudeRate<250)
+		return B200;
+				    
+	if(BaudeRate<450)
+		return B300;
+				    
+	if(BaudeRate<900)
+		return B600;
+				    
+	if(BaudeRate<1500)
+		return B1200;
+			    
+	if(BaudeRate<2100)
+		return B1800;
+				    
+	if(BaudeRate<3600)
+		return B2400;
+				    
+	if(BaudeRate<7200)
+		return B4800;
+				    
+	if(BaudeRate<1400)
+		return B9600;
+				    
+	if(BaudeRate<28800)
+		return B19200;
+				    
+	if(BaudeRate<48000)
+		return B38400;
+			    
+	if(BaudeRate<86400)
+		return B57600;
+				    
+	if(BaudeRate<172800)
+		return B115200;
+	else			    
+//	if(172799<BaudeRate)
+		return B230400;
+}
+
+
+int rs232cfparity(int fd, struct termios *terminos, int Parity)
+{
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		switch(Parity)
+		{
+			case 1:
+			    	terminos->c_cflag |= PARENB;
+			break;
+			default:
+				terminos->c_cflag &= ~PARENB;
+			break;
+		}
+		return 0;
+	}
+}
+
+
+int rs232cfnbstop(int fd, struct termios *terminos, int NbStop)
+{
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		switch(NbStop)
+		{
+			case 2:
+				terminos->c_cflag |= CSTOPB;
+			break;
+			default:
+				terminos->c_cflag &= ~CSTOPB;
+			break;
+		}
+		return 0;
+	}
+}
+
+
+int rs232cfcsize(int fd, struct termios *terminos, int ChSize)
+{
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		switch(ChSize)
+		{
+			case 5:
+				terminos->c_cflag |= CS5;
+			break;
+			case 6:
+				terminos->c_cflag |= CS6;
+			break;
+			case 7:
+				terminos->c_cflag |= CS7;
+			break;
+			default:
+				terminos->c_cflag |= CS8;
+			break;
+		}
+		return 0;
+	}
+}
+
+
+int rs232open(char* psPortName)
+{
+
+	int fd = open(psPortName, O_RDWR | O_NOCTTY | O_NDELAY);
+
+	return fd;
+}
+
+
+int rs232setup(int fd, int ChSize, int BaudeRate, int Parity, int NbStop)
+{
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		struct termios terminos;
+		tcgetattr(fd, &terminos);
+
+		cfsetispeed(&terminos, rs232cfspeed(BaudeRate));
+		cfsetospeed(&terminos, rs232cfspeed(BaudeRate));
+
+		terminos.c_cflag |= (CLOCAL | CREAD);
+		rs232cfparity(fd, &terminos, Parity);
+		rs232cfnbstop(fd, &terminos, NbStop);
+		rs232cfcsize(fd, &terminos, ChSize);
+
+
+		tcsetattr(fd, TCSANOW, &terminos);
+		tcgetattr(fd, &terminos);
+		return 0;
+	}
+}
+
+
+int rs232write(int fd,char *psWrite)
+{
+	int Len_psWrite = (int)strlen(psWrite);
+	int charsWrite=0;
+
+	if (fd == -1)
+	{
+		return -1;
+	}
+	else
+	{
+		charsWrite = write(fd, psWrite, Len_psWrite);
+		return charsWrite;
+	}
+}
+
+
+int rs232read(int fd,char *psReadHex)
+{
+	char ReadBuff[ReadBufferSize];
+	int CharsRead=0, Reads=0, i=0;
+
+	for(i=0;i<ReadBufferSize;i++)
+		ReadBuff[i]='\0';
+
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		read(fd, ReadBuff, ReadBufferSize);
+		while(CharsRead<(ReadBufferSize-1))
+		{
+			for(i=0;i<ReadBufferSize;i++)
+				ReadBuff[i]='\0';
+
+			if((Reads = read(fd, ReadBuff, (ReadBufferSize-1)-CharsRead)) > 0)
+			{
+				CharsRead = CharsRead + Reads;
+				ReadBuff[CharsRead]='\0';
+				strcat(psReadHex, ReadBuff);
+			}
+
+		}
+		return CharsRead;
+	}
+}
+
+
+int rs232close(int fd)
+{
+	if (fd == -1)
+	{
+		return fd;
+	}
+	else
+	{
+		close(fd);
+		return 0;
+	}
+}
diff --git a/RS232.h b/RS232.h
new file mode 100755
--- /dev/null
+++ b/RS232.h
@@ -0,0 +1,11 @@
+// SOPSUYSI_RS232.h
+
+
+#define ReadBufferSize 16*1024
+
+
+int rs232open(char* psPortName);
+int rs232close(int fd);
+int rs232setup(int fd, int ChSize, int BaudeRate, int Parity, int NbStop);
+int rs232write(int fd,char *psWrite);
+int rs232read(int fd,char *psReadHex);