LT8713SX_PAGE_SIZE
page = (filesize % LT8713SX_PAGE_SIZE) ?
((filesize / LT8713SX_PAGE_SIZE) + 1) : (filesize / LT8713SX_PAGE_SIZE);
for (i = 0; i < LT8713SX_PAGE_SIZE; i++) {
if ((num * LT8713SX_PAGE_SIZE + i) < filesize)
val = *(data + (num * LT8713SX_PAGE_SIZE + i));