The raw PS/2 mouse device driver /dev/psm0
uses the raw PS/2
mouse protocol.
OpenBSD 2.2 and earlier does not support extended PS/2 mouse protocols
("xxxPS/2"
) . Therefore, you should specify the
"PS/2"
protocol for any PS/2 mouse regardless of the brand of
the mouse.
OpenBSD 2.3 and later support all extended PS/2 mouse protocols.
You can select the "Auto"
protocol for PnP PS/2
mice or any specific extended ("xxxPS/2"
) protocol
for non PnP mice.
There is also a cooked PS/2 mouse device driver /dev/pms0
which emulates the bus mouse. Specify the "BusMouse"
protocol for any PS/2 mouse regardless of the brand of the mouse when
using this device.