rawsum_t
rawsum_t
nm_os_csum_raw(uint8_t *data, size_t len, rawsum_t cur_sum)
nm_os_csum_fold(rawsum_t cur_sum)
rawsum_t nm_os_csum_raw(uint8_t *data, size_t len, rawsum_t cur_sum);
uint16_t nm_os_csum_fold(rawsum_t cur_sum);
rawsum_t csum = 0;