LK_NUM_IGNORE_BYTES
unsigned char id[LK_NUM_IGNORE_BYTES];
for (i = 0; i < LK_NUM_IGNORE_BYTES; i++)
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;