Symbol: BTN_MOUSE
sys/bus/u4b/input/ums.c
741
evdev_support_key(sc->sc_evdev, BTN_MOUSE + i);
sys/dev/misc/psm/psm.c
1846
evdev_support_key(evdev_r, BTN_MOUSE + i);
sys/dev/misc/syscons/sysmouse.c
130
evdev_support_key(sysmouse_evdev, BTN_MOUSE + i);