-S16 buildPlmnId(Plmn plmn, OCTET_STRING_t *octe);
-S16 fillBitString(BIT_STRING_t *id, U8 unusedBits, U8 byteSize, U8 val);
-S16 bitStringToInt(BIT_STRING_t *bitString, U16 *val);
+uint8_t buildPlmnId(Plmn plmn, uint8_t *buf);
+uint8_t fillBitString(BIT_STRING_t *id, uint8_t unusedBits, uint8_t byteSize, uint8_t val);
+uint8_t bitStringToInt(BIT_STRING_t *bitString, uint16_t *val);