diff --git a/ini-config.c b/ini-config.c
index 3c0eaad..fecdec2 100644
--- a/ini-config.c
+++ b/ini-config.c
@@ -109,6 +109,9 @@ void INI_ConfigOverride##ID(INI_ConfigItem* item, uint8_t argc, const char* argv
 
 INI_CONFIG_REGISTER_INT_TYPE(U8, uint8_t);
 INI_CONFIG_REGISTER_INT_TYPE(U16, uint16_t);
+INI_CONFIG_REGISTER_INT_TYPE(U32, uint32_t);
+INI_CONFIG_REGISTER_INT_TYPE(I8, int8_t);
+INI_CONFIG_REGISTER_INT_TYPE(I16, int16_t);
 INI_CONFIG_REGISTER_INT_TYPE(I32, int32_t);
 
 typedef bool INI_ConfigLoadParamsStringValidator(const char*);
@@ -117,18 +120,18 @@ void INI_ConfigEnsureValidString(INI_ConfigItem* item, const char* buffer) {
 	if (item->validator) {
 		INI_ConfigLoadParamsStringValidator* validator = item->validator;
 		if (validator(buffer)) {
-			memcpy(item->dest, buffer, item->fns.size);
+			memcpy(item->dest, buffer, item->type.size);
 			return;
 		}
-		memcpy(item->dest, item->default_value, item->fns.size);
+		memcpy(item->dest, item->default_value, item->type.size);
 		return;
 	}
-	memcpy(item->dest, buffer, item->fns.size);
+	memcpy(item->dest, buffer, item->type.size);
 }
 
 void INI_ConfigLoadString(INI_ConfigItem* item, const char* config_path) {
-	char buffer[item->fns.size];
-	ini_gets(item->section, item->key, item->default_value, buffer, (int32_t) item->fns.size, config_path);
+	char buffer[item->type.size];
+	ini_gets(item->section, item->key, item->default_value, buffer, (int32_t) item->type.size, config_path);
 	INI_ConfigEnsureValidString(item, buffer);
 }
 
@@ -160,19 +163,19 @@ void INI_ConfigOverrideString(INI_ConfigItem* item, uint8_t argc, const char* ar
 
 void INI_ConfigLoad(INI_ConfigItem item[], const char* config_path) {
 	uint8_t i;
-	for (i = 0; item[i].fns.size > 0; i += 1) {
-		if (!item[i].fns.load) {
+	for (i = 0; item[i].type.size > 0; i += 1) {
+		if (!item[i].type.load) {
 			continue;
 		}
-		item[i].fns.load(&item[i], config_path);
+		item[i].type.load(&item[i], config_path);
 	}
 }
 
 INI_ConfigSaveResult INI_ConfigSave(INI_ConfigItem item[], const char* config_path) {
 	uint8_t i;
 	int32_t problems = 0;
-	for (i = 0; item[i].fns.size > 0; i += 1) {
-		int32_t result = item[i].fns.save ? item[i].fns.save(&item[i], config_path) : 0;
+	for (i = 0; item[i].type.size > 0; i += 1) {
+		int32_t result = item[i].type.save ? item[i].type.save(&item[i], config_path) : 0;
 
 		if (result < 0) {
 			problems |= (1 << (int32_t) i);
@@ -184,12 +187,12 @@ INI_ConfigSaveResult INI_ConfigSave(INI_ConfigItem item[], const char* config_pa
 
 void INI_ConfigOverride(INI_ConfigItem item[], uint8_t argc, const char* argv[]) {
 	uint8_t i;
-	for (i = 0; item[i].fns.size > 0; i += 1) {
-		if (!item[i].fns.override) {
+	for (i = 0; item[i].type.size > 0; i += 1) {
+		if (!item[i].type.override) {
 			continue;
 		}
 
-		item[i].fns.override(&item[i], argc, argv);
+		item[i].type.override(&item[i], argc, argv);
 		// TODO specify command-line arg external from config item?
 
 	}
diff --git a/ini-config.h b/ini-config.h
index 1ac85d3..0bc5a7e 100644
--- a/ini-config.h
+++ b/ini-config.h
@@ -14,25 +14,25 @@ typedef struct {
 
 struct INI_ConfigItem;
 
-typedef void INI_ConfigLoadType(struct INI_ConfigItem*, const char*);
+typedef void INI_ConfigTypeLoad(struct INI_ConfigItem*, const char*);
 
 typedef enum {
 	INI_CONFIG_SAVE_ITEM_ERROR = -1,
 	INI_CONFIG_SAVE_ITEM_OK,
 } INI_ConfigSaveItemResult;
 
-typedef INI_ConfigSaveItemResult INI_ConfigSaveType(struct INI_ConfigItem*, const char*);
+typedef INI_ConfigSaveItemResult INI_ConfigTypeSave(struct INI_ConfigItem*, const char*);
 
-typedef void INI_ConfigOverrideType(struct INI_ConfigItem*, uint8_t, const char*[]);
+typedef void INI_ConfigTypeOverride(struct INI_ConfigItem*, uint8_t, const char*[]);
 typedef struct {
 	size_t size;
-	INI_ConfigLoadType* load;
-	INI_ConfigSaveType* save;
-	INI_ConfigOverrideType* override;
-} INI_ConfigTypeFns;
+	INI_ConfigTypeLoad* load;
+	INI_ConfigTypeSave* save;
+	INI_ConfigTypeOverride* override;
+} INI_ConfigType;
 
 typedef struct INI_ConfigItem {
-	INI_ConfigTypeFns fns;
+	INI_ConfigType type;
 	const char* section;
 	const char* key;
 	const char* cmdline_option;
@@ -60,65 +60,95 @@ INI_ConfigSaveResult INI_ConfigSave(INI_ConfigItem[], const char*);
 
 void INI_ConfigLoadU8(INI_ConfigItem*, const char*);
 void INI_ConfigLoadU16(INI_ConfigItem*, const char*);
+void INI_ConfigLoadU32(INI_ConfigItem*, const char*);
+void INI_ConfigLoadI8(INI_ConfigItem*, const char*);
+void INI_ConfigLoadI16(INI_ConfigItem*, const char*);
 void INI_ConfigLoadI32(INI_ConfigItem*, const char*);
 void INI_ConfigLoadString(INI_ConfigItem*, const char*);
 
 INI_ConfigSaveItemResult INI_ConfigSaveU8(INI_ConfigItem*, const char*);
 INI_ConfigSaveItemResult INI_ConfigSaveU16(INI_ConfigItem*, const char*);
+INI_ConfigSaveItemResult INI_ConfigSaveU32(INI_ConfigItem*, const char*);
+INI_ConfigSaveItemResult INI_ConfigSaveI8(INI_ConfigItem*, const char*);
+INI_ConfigSaveItemResult INI_ConfigSaveI16(INI_ConfigItem*, const char*);
 INI_ConfigSaveItemResult INI_ConfigSaveI32(INI_ConfigItem*, const char*);
 INI_ConfigSaveItemResult INI_ConfigSaveString(INI_ConfigItem*, const char*);
 
 void INI_ConfigOverrideU8(INI_ConfigItem*, uint8_t, const char*[]);
 void INI_ConfigOverrideU16(INI_ConfigItem*, uint8_t, const char*[]);
+void INI_ConfigOverrideU32(INI_ConfigItem*, uint8_t, const char*[]);
+void INI_ConfigOverrideI8(INI_ConfigItem*, uint8_t, const char*[]);
+void INI_ConfigOverrideI16(INI_ConfigItem*, uint8_t, const char*[]);
 void INI_ConfigOverrideI32(INI_ConfigItem*, uint8_t, const char*[]);
 void INI_ConfigOverrideString(INI_ConfigItem*, uint8_t, const char*[]);
 
-#define INI_CONFIG_TYPE_FNS_I32 (INI_ConfigTypeFns) { \
-	.size = sizeof(int32_t), \
-	.load = INI_ConfigLoadI32, \
-	.save = INI_ConfigSaveI32, \
-	.override = INI_ConfigOverrideI32, \
+#define INI_CONFIG_TYPE_U8 (INI_ConfigType) { \
+	.size = sizeof(uint8_t), \
+	.load = INI_ConfigLoadU8, \
+	.save = INI_ConfigSaveU8, \
+	.override = INI_ConfigOverrideU8, \
 }
 
-#define INI_CONFIG_TYPE_FNS_U16 (INI_ConfigTypeFns) { \
+#define INI_CONFIG_TYPE_U16 (INI_ConfigType) { \
 	.size = sizeof(uint16_t), \
 	.load = INI_ConfigLoadU16, \
 	.save = INI_ConfigSaveU16, \
 	.override = INI_ConfigOverrideU16, \
 }
 
-#define INI_CONFIG_TYPE_FNS_U8 (INI_ConfigTypeFns) { \
-	.size = sizeof(uint8_t), \
-	.load = INI_ConfigLoadU8, \
-	.save = INI_ConfigSaveU8, \
-	.override = INI_ConfigOverrideU8, \
+#define INI_CONFIG_TYPE_U32 (INI_ConfigType) { \
+	.size = sizeof(uint32_t), \
+	.load = INI_ConfigLoadU32, \
+	.save = INI_ConfigSaveU32, \
+	.override = INI_ConfigOverrideU32, \
+}
+
+#define INI_CONFIG_TYPE_I8 (INI_ConfigType) { \
+	.size = sizeof(int8_t), \
+	.load = INI_ConfigLoadI8, \
+	.save = INI_ConfigSaveI8, \
+	.override = INI_ConfigOverrideI8, \
 }
 
-#define INI_CONFIG_TYPE_FNS_VOID (INI_ConfigTypeFns) { \
-	.size = 0, \
-	.load = NULL, \
-	.save = NULL, \
-	.override = NULL, \
+#define INI_CONFIG_TYPE_I16 (INI_ConfigType) { \
+	.size = sizeof(int16_t), \
+	.load = INI_ConfigLoadI16, \
+	.save = INI_ConfigSaveI16, \
+	.override = INI_ConfigOverrideI16, \
 }
 
-#define INI_CONFIG_TYPE_FNS_STRING(X) (INI_ConfigTypeFns) { \
-	.size = (X), \
+#define INI_CONFIG_TYPE_I32 (INI_ConfigType) { \
+	.size = sizeof(int32_t), \
+	.load = INI_ConfigLoadI32, \
+	.save = INI_ConfigSaveI32, \
+	.override = INI_ConfigOverrideI32, \
+}
+
+#define INI_CONFIG_TYPE_FNS_STRING(X) (INI_ConfigType) { \
+	.size = (sizeof(char) * X), \
 	.load = INI_ConfigLoadString, \
 	.save = INI_ConfigSaveString, \
 	.override = INI_ConfigOverrideString, \
 }
 
+#define INI_CONFIG_SERIALIZER_PAIR_NONE (INI_ConfigSerializerPair) { \
+	.serialize = NULL, \
+	.deserialize = NULL, \
+}
+
 #define INI_CONFIG_ITEM_NULL (INI_ConfigItem) { \
-  INI_CONFIG_TYPE_FNS_VOID, \
+  (INI_ConfigType) { \
+	  .size = 0, \
+	  .load = NULL, \
+	  .save = NULL, \
+	  .override = NULL, \
+  }, \
 	NULL, \
 	NULL, \
 	NULL, \
 	NULL, \
 	NULL, \
-	{ \
-		.serialize = NULL, \
-		.deserialize = NULL, \
-	}, \
+	INI_CONFIG_SERIALIZER_PAIR_NONE, \
 	NULL, \
 }