REL_CNT
for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
[EV_REL] = REL_CNT,
events += bitmap_weight(dev->relbit, REL_CNT);
for_each_set_bit(i, input->relbit, REL_CNT) {
unsigned long rel_axis_seen[BITS_TO_LONGS(REL_CNT)];
bitmap_zero(dev1->relbit, REL_CNT);
bitmap_zero(input_dev->relbit, REL_CNT);
bitmap_zero(dev->relbit, REL_CNT);
vi->idev->relbit, REL_CNT);
unsigned long relbit[BITS_TO_LONGS(REL_CNT)];