typedef struct FWCfgState FWCfgState;
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len);
+void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);