MAXPENDING
for(i=0; i<MAXPENDING; i++) {
struct esc_pending sc_xs_store[MAXPENDING];
for(i=0; i<MAXPENDING; i++) {
struct sfas_pending sc_xs_store[MAXPENDING];
struct ukbd_data sc_data[MAXPENDING];
sc->sc_data_w = (sc->sc_data_w + 1) % MAXPENDING;
sc->sc_data_w = (sc->sc_data_w + 1) % MAXPENDING;
sc->sc_data_r = (sc->sc_data_r + 1) % MAXPENDING;