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3. Serial Ports
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
/dev/ttyS0
(COM1 under DOS) or
/dev/ttyS1
(COM2). (
ttyS0
is usually the 9 pin socket,
ttyS1
the 25 pin socket, but of course there is no hard and fast rule about these things.) There are also an equivalent number of
/dev/cua
devices, which are almost the same as the
ttyS
ones, but their use is now discouraged. For convenience make a new link
/dev/mouse
pointing at this port. For instance, for
ttyS0
:
ln -s /dev/ttyS0 /dev/mouse
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