import bcd2char() and char2bcd() from OpenBSC
diff --git a/include/osmocore/utils.h b/include/osmocore/utils.h
index cf3b460..51c6f03 100644
--- a/include/osmocore/utils.h
+++ b/include/osmocore/utils.h
@@ -13,5 +13,8 @@
 const char *get_value_string(const struct value_string *vs, uint32_t val);
 int get_string_value(const struct value_string *vs, const char *str);
 
+char bcd2char(uint8_t bcd);
+/* only works for numbers in ascci */
+uint8_t char2bcd(char c);
 
 #endif