HelenOS sources

input_ev_button   217 uspace/lib/input/src/input.c 			input_ev_button(input, &call);
input_ev_button   130 uspace/srv/hid/console/console.c static errno_t input_ev_button(input_t *, unsigned, int, int);
input_ev_button   139 uspace/srv/hid/console/console.c 	.button = input_ev_button,
HelenOS homepage, sources at GitHub