aux/mouse, aux/accupoint – configure a mouse to a port


aux/mouse [ -b baud ] [ -d type ] [ -n ] port



Mouse queries a mouse on a serial or PS2 port for its type and then configures the port and the mouse to be used to control the cursor.

Port can be either a port number (e.g. 0 or 1) or the string ps2 or ps2intellimouse. The initialization can be automated by setting mouseport in plan9.ini(8), which will enable a call to mouse in termrc (see cpurc(8)).

The option -d provides a default mouse type should mouse fail to determine it. The types are:


Logitech type C mouse  


Logitech type W mouse  


Microsoft compatible mouse  

The -n flag queries the mouse and reports its type but does not set the device type.

The -b flag sets the baud rate for communication; it is effectual only for serial mice.

Accupoint is a process, to be used with pipefile(1), that processes events from an AccuPoint II pointing device with four buttons, such as on Toshiba Portégé 3440CT and 3480CT laptops, converting events on the two extra buttons (which appear as buttons 4 and 5 in the mouse(3) interface) into a simulation of button 2. These extra buttons on laptops are in turn simulations of Intellimouse scrolling buttons and have peculiar properties: they generate only ‘down’ events that repeat automatically, like a keypad, in an approximation of the Intellimouse scroll wheel. Accupoint overcomes this behavior to produce a reasonable approximation of a normal mouse button 2: it makes left button act like a regular button 2, but is slow to release (the program must wait for a repeat time before it knows the button has been released), while the right button generates a fast button 2 ‘click’. To use accupoint, add a line like this to /usr/$user/lib/profile or to a system-dependent configuration script in termrc (see cpurc(8)):

pipefile -dr /bin/aux/accupoint /dev/mouse

Before running accupoint, the mouse should be configured as an intellimouse or ps2intellimouse.




cons(3), cpurc(8), pipefile(1).


Due to the limitations of pipefile(1), when running accupoint it is difficult restart rio(1) if it has exited.