<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE>The 3 Button Serial Mouse mini-HOWTO: Serial Ports </TITLE> <LINK HREF="3-Button-Mouse-4.html" REL=next> <LINK HREF="3-Button-Mouse-2.html" REL=previous> <LINK HREF="3-Button-Mouse.html#toc3" REL=contents> </HEAD> <BODY> <A HREF="3-Button-Mouse-4.html">Next</A> <A HREF="3-Button-Mouse-2.html">Previous</A> <A HREF="3-Button-Mouse.html#toc3">Contents</A> <HR> <H2><A NAME="s3">3. Serial Ports </A></H2> <P>The first thing to do is to make sure the software can find the mouse. Work out which serial port your mouse is connected to - usually this will be <CODE>/dev/ttyS0</CODE> (COM1 under DOS) or <CODE>/dev/ttyS1</CODE> (COM2). (<CODE>ttyS0</CODE> is usually the 9 pin socket, <CODE>ttyS1</CODE> the 25 pin socket, but of course there is no hard and fast rule about these things.) There are also an equivalent number of <CODE>/dev/cua</CODE> devices, which are almost the same as the <CODE>ttyS</CODE> ones, but their use is now discouraged. For convenience make a new link <CODE>/dev/mouse</CODE> pointing at this port. For instance, for <CODE>ttyS0</CODE>: <P> <BLOCKQUOTE><CODE> ln -s /dev/ttyS0 /dev/mouse </CODE></BLOCKQUOTE> <P> <HR> <A HREF="3-Button-Mouse-4.html">Next</A> <A HREF="3-Button-Mouse-2.html">Previous</A> <A HREF="3-Button-Mouse.html#toc3">Contents</A> </BODY> </HTML>