MAX_EVENT
wp = (events->eventw + 1) % MAX_EVENT;
events->eventr = (events->eventr + 1) % MAX_EVENT;
events->eventr = (events->eventr + 1) % MAX_EVENT;
struct event_queue ev_queue[MAX_EVENT];
if (++ev == &smc->q.ev_queue[MAX_EVENT])
if (++smc->q.ev_put == &smc->q.ev_queue[MAX_EVENT])
struct dvb_frontend_event events[MAX_EVENT];