README for XFree86 3.3.2 on OpenBSD : Configuring X for Your Hardware : About mouse configuration
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## 5.1. About mouse configuration

If your serial mouse does not work try using `kermit` or `tip` to connect to the mouse serial port and verify that it does indeed generate characters.

The OpenBSD pms driver provides both "raw" and "cooked" (translated) modes. "raw" mode does not do protocol translation, so XFree86 would use the PS/2 protocol for talking to the device in that mode. "cooked" mode is the old BusMouse translation. By default, the driver runs in "cooked" mode. It can be switched using ioctls or by opening the first minor device which is `/dev/psm0`.

Only standard PS/2 mice are supported by this driver. Newest PS/2 mice that send more than three bytes at a time (especially intellimouse, or mouseman+ with a "3D" roller) are not supported yet.

See README.mouse for general instruction on mouse configuration in XFree86.

README for XFree86 3.3.2 on OpenBSD : Configuring X for Your Hardware : About mouse configuration
Previous: Configuring X for Your Hardware
Next: Other input devices