HelenOS sources

PROXIMITY_IN      132 uspace/srv/hid/isdv4_tablet/isdv4.c 			event.type = PROXIMITY_IN;
PROXIMITY_IN      146 uspace/srv/hid/isdv4_tablet/isdv4.c 				event.type = PROXIMITY_IN;
PROXIMITY_IN      154 uspace/srv/hid/isdv4_tablet/isdv4.c 				event.type = PROXIMITY_IN;
PROXIMITY_IN      130 uspace/srv/hid/isdv4_tablet/main.c 	case PROXIMITY_IN:
HelenOS homepage, sources at GitHub