diff --git a/source/map.c b/source/map.c
index 32deeca..04e8552 100644
--- a/source/map.c
+++ b/source/map.c
@@ -1,3 +1,9 @@
+/***
+The `map` module.
+@module ctr.gfx.map
+@usage local map = require("ctr.gfx.map")
+*/
+
 #include <sf2d.h>
 
 #include <lapi.h>
@@ -30,6 +36,16 @@ u16 getTile(map_userdata *map, int x, int y) {
 }
 
 // module functions
+
+/***
+Load a map from a file.
+@function load
+@tparam string path path to the .map
+@tparam texture tileset containing the tileset
+@tparam number tileWidth tile width
+@tparam number tileHeight tile height
+@treturn map loaded map object
+*/
 static int map_load(lua_State *L) {
 	const char *mapPath = luaL_checkstring(L, 1);
 	texture_userdata *texture = luaL_checkudata(L, 2, "LTexture");
@@ -91,6 +107,18 @@ static int map_load(lua_State *L) {
 	return 1;
 }
 
+/***
+Map object
+@section Methods
+*/
+
+/***
+Draw a map.
+@function :draw
+@tparam number x X position
+@tparam number y Y position
+@within Methods
+*/
 static int map_draw(lua_State *L) {
 	map_userdata *map = luaL_checkudata(L, 1, "LMap");
 	int x = luaL_checkinteger(L, 2);
@@ -120,6 +148,11 @@ static int map_draw(lua_State *L) {
 	return 0;
 }
 
+/***
+Unload a map.
+@function :unload
+@within Methods
+*/
 static int map_unload(lua_State *L) {
 	map_userdata *map = luaL_checkudata(L, 1, "LMap");
 	free(map->data);
@@ -127,6 +160,13 @@ static int map_unload(lua_State *L) {
 	return 0;
 }
 
+/***
+Return the size of a map.
+@function :getSize
+@treturn number width of the map, in tiles
+@treturn number height of the map, in tiles
+@within Methods
+*/
 static int map_getSize(lua_State *L) {
 	map_userdata *map = luaL_checkudata(L, 1, "LMap");
 	
@@ -136,6 +176,14 @@ static int map_getSize(lua_State *L) {
 	return 2;
 }
 
+/***
+Return the value of a tile.
+@function :getTile
+@tparam number x X position of the tile
+@tparam number y Y position of the tile
+@treturn number value of the tile
+@within Methods
+*/
 static int map_getTile(lua_State *L) {
 	map_userdata *map = luaL_checkudata(L, 1, "LMap");
 	int x = luaL_checkinteger(L, 2);
@@ -145,6 +193,14 @@ static int map_getTile(lua_State *L) {
 	return 1;
 }
 
+/***
+Set the value of a tile.
+@function :setTile
+@tparam number x X position of the tile
+@tparam number y Y position of the tile
+@tparam number value New value for the tile
+@within Methods
+*/
 static int map_setTile(lua_State *L) {
 	map_userdata *map = luaL_checkudata(L, 1, "LMap");
 	int x = luaL_checkinteger(L, 2);
diff --git a/source/qtm.c b/source/qtm.c
index 45ce66b..758a53a 100644
--- a/source/qtm.c
+++ b/source/qtm.c
@@ -1,3 +1,9 @@
+/***
+The `qtm` module, for headtracking. New3ds only.
+@module ctr.qtm
+@usage local qtm = require("ctr.qtm")
+@newonly
+*/
 #include <3ds.h>
 #include <3ds/types.h>
 #include <3ds/services/qtm.h>
@@ -13,6 +19,10 @@ typedef struct {
 
 static const struct luaL_Reg qtm_methods[];
 
+/***
+Initialize the QTM module.
+@function init
+*/
 static int qtm_init(lua_State *L) {
 	Result ret = qtmInit();
 	if (ret) {
@@ -25,12 +35,21 @@ static int qtm_init(lua_State *L) {
 	return 1;
 }
 
+/***
+Disable the QTM module.
+@function shutdown
+*/
 static int qtm_shutdown(lua_State *L) {
 	qtmExit();
 
 	return 0;
 }
 
+/***
+Check if the module is initialized.
+@function checkInitialized
+@treturn boolean `true` if initialized.
+*/
 static int qtm_checkInitialized(lua_State *L) {
 	bool isInit = qtmCheckInitialized();
 
@@ -38,6 +57,11 @@ static int qtm_checkInitialized(lua_State *L) {
 	return 1;
 }
 
+/***
+Return informations about the headtracking
+@function getHeadTrackingInfo
+@treturn qtmInfos QTM informations
+*/
 static int qtm_getHeadtrackingInfo(lua_State *L) {
 	qtm_userdata *data = lua_newuserdata(L, sizeof(*data));
 	luaL_getmetatable(L, "LQTM");
@@ -50,6 +74,12 @@ static int qtm_getHeadtrackingInfo(lua_State *L) {
 	return 1;
 }
 
+/***
+Check if the head is fully detected
+@function checkHeadFullyDetected
+@tparam qtmInfos qtmInfos QTM informations
+@treturn boolean `true` if fully detected
+*/
 static int qtm_checkHeadFullyDetected(lua_State *L) {
 	qtm_userdata *info = luaL_checkudata(L, 1, "LQTM");
 	lua_pushboolean(L, qtmCheckHeadFullyDetected(info->info));
@@ -84,6 +114,16 @@ static int qtm___index(lua_State *L) {
 	return 1;
 }
 
+/***
+Convert QTM coordinates to screen coordinates
+@function convertCoordToScreen
+@tparam qtmInfos qtmInfos QTM informations
+@tparam number coordinates index
+@tparam number [screenWidth] specify a screen width (default `400`)
+@tparam number [screenHeight] specify a screen height (default `320`)
+@treturn number screen X coordinate
+@treturn number screen Y coordinate
+*/
 static int qtm_convertCoordToScreen(lua_State *L) {
 	qtm_userdata *info = luaL_checkudata(L, 1, "LQTM");
 	lua_Integer index = luaL_checkinteger(L, 2);
@@ -105,6 +145,33 @@ static int qtm_convertCoordToScreen(lua_State *L) {
 	return 2;
 }
 
+/***
+qtmInfos object
+@section Methods
+*/
+
+/***
+Check if the head is fully detected
+@function :checkHeadFullyDetected
+@treturn boolean `true` if fully detected
+*/
+
+/***
+Convert QTM coordinates to screen coordinates
+@function :convertCoordToScreen
+@tparam number coordinates index
+@tparam number [screenWidth] specify a screen width (default `400`)
+@tparam number [screenHeight] specify a screen height (default `320`)
+@treturn number screen X coordinate
+@treturn number screen Y coordinate
+*/
+
+/***
+When the object is indexed with a number from 1 to 4, it returns a coordinate
+of one of the headtracker point.
+@tfield number index coordinates, as two numbers (not a table)
+*/
+
 // object
 static const struct luaL_Reg qtm_methods[] = {
 	{"checkHeadFullyDetected", qtm_checkHeadFullyDetected},