INTELLIMOUSE_BUTTON_COUNT 328 uspace/drv/hid/ps2mouse/ps2mouse.c bool buttons[INTELLIMOUSE_BUTTON_COUNT] = { }; INTELLIMOUSE_BUTTON_COUNT 364 uspace/drv/hid/ps2mouse/ps2mouse.c for (unsigned i = 0; i < INTELLIMOUSE_BUTTON_COUNT; ++i) {HelenOS homepage, sources at GitHub