You can now start moused with an argument, so it will look at the right device. In most cases, I imagine “/etc/rc.d/moused start ums0” will be what anyone wants. Credit to Michael Neumann for the update. Perhaps moused_flags="ums0" will do it too? I haven’t tried yet.
This will overwrite your /etc/devd.conf.
Credit to Sascha Wildner :).
You have to uncomment the notify sections for “ums” in /etc/devd.conf to make it work automatically with a usb mouse.