From: edc@ee.ubc.ca (Ed Casas) Subject: "hardware" fix to set 3-button serial mouse mode Date: Mon, 26 Apr 1993 03:10:31 GMT
I have a mouse that switches from PC-Mouse (3-button) mode to
Microsoft (2-button) mode according to the level of the DTR
handshake line. The default 2-button mode is awkward to use
under X11.
I found that simply disconnecting the DTR line from my mouse lets
the line float low (-5V) on the mouse side and sets the PC-Mouse
mode.
I was able to disconnect DTR by bending a contact on a connector
inside my mouse. Another possibility would be to make a serial
connector adapter that does not pass DTR through.
Note that serial mice draw their power through the RS-232 lines
so if you disconnect too many lines your mouse will stop working.
It worked for me...
-- Ed Casas (edc@ee.ubc.ca)