diff --git a/radio/src/lua/api_model.cpp b/radio/src/lua/api_model.cpp
index b04437a2e..52833e22e 100644
--- a/radio/src/lua/api_model.cpp
+++ b/radio/src/lua/api_model.cpp
@@ -2,7 +2,7 @@
  * Copyright (C) OpenTX
  *
  * Based on code named
- *   th9x - http://code.google.com/p/th9x 
+ *   th9x - http://code.google.com/p/th9x
  *   er9x - http://code.google.com/p/er9x
  *   gruvin9x - http://code.google.com/p/gruvin9x
  *
@@ -48,11 +48,11 @@ static int luaModelGetInfo(lua_State *L)
 /*luadoc
 @function model.setInfo(value)
 
-Set the current Model information 
+Set the current Model information
 
 @param value model information data, see model.getInfo()
 
-@notice If a parameter is missing from the value, then 
+@notice If a parameter is missing from the value, then
 that parameter remains unchanged.
 
 @status current Introduced in 2.0.6, changed in TODO
@@ -130,7 +130,7 @@ Set RF module parameters
 
 @param value module parameters, see model.getModule()
 
-@notice If a parameter is missing from the value, then 
+@notice If a parameter is missing from the value, then
 that parameter remains unchanged.
 
 @status current Introduced in TODO
@@ -213,7 +213,7 @@ Set model timer parameters
 
 @param value timer parameters, see model.getTimer()
 
-@notice If a parameter is missing from the value, then 
+@notice If a parameter is missing from the value, then
 that parameter remains unchanged.
 
 @status current Introduced in 2.0.0
@@ -300,7 +300,7 @@ static unsigned int getInputsCount(unsigned int chn)
 /*luadoc
 @function model.getInputsCount(input)
 
-Return number of lines for given input 
+Return number of lines for given input
 
 @param input (unsigned number) input number (use 0 for Input1)
 
@@ -319,7 +319,7 @@ static int luaModelGetInputsCount(lua_State *L)
 /*luadoc
 @function model.getInput(input, line)
 
-Return input data for given input and line number 
+Return input data for given input and line number
 
 @param input (unsigned number) input number (use 0 for Input1)
 
@@ -330,11 +330,13 @@ Return input data for given input and line number
 @retval table input data:
  * `name` (string) input line name
  * `source` (number) input source index
- * `weight` (number) input weight 
- * `offset` (number) input offset 
+ * `weight` (number) input weight
+ * `offset` (number) input offset
  * `switch` (number) input switch index
+ * `curveType` (number) curve type (function, expo, custom curve)
+ * `curveValue` (number) curve index
 
-@status current Introduced in 2.0.0, `switch` added in TODO
+@status current Introduced in 2.0.0, curveType/curveValue added in 2.3
 */
 static int luaModelGetInput(lua_State *L)
 {
@@ -350,6 +352,8 @@ static int luaModelGetInput(lua_State *L)
     lua_pushtableinteger(L, "weight", expo->weight);
     lua_pushtableinteger(L, "offset", expo->offset);
     lua_pushtableinteger(L, "switch", expo->swtch);
+    lua_pushtableinteger(L, "curveType", expo->curve.type);
+    lua_pushtableinteger(L, "curveValue", expo->curve.value);
   }
   else {
     lua_pushnil(L);
@@ -368,7 +372,7 @@ Insert an Input at specified line
 
 @param value (table) input data, see model.getInput()
 
-@status current Introduced in 2.0.0, `switch` added in TODO
+@status current Introduced in 2.0.0, curveType/curveValue added in 2.3
 */
 static int luaModelInsertInput(lua_State *L)
 {
@@ -403,6 +407,12 @@ static int luaModelInsertInput(lua_State *L)
       else if (!strcmp(key, "switch")) {
         expo->swtch = luaL_checkinteger(L, -1);
       }
+      else if (!strcmp(key, "curveType")) {
+        expo->curve.type = luaL_checkinteger(L, -1);
+      }
+      else if (!strcmp(key, "curveValue")) {
+        expo->curve.value = luaL_checkinteger(L, -1);
+      }
     }
   }
 
@@ -438,7 +448,7 @@ static int luaModelDeleteInput(lua_State *L)
 /*luadoc
 @function model.deleteInputs()
 
-Delete all Inputs 
+Delete all Inputs
 
 @status current Introduced in 2.0.0
 */
@@ -491,7 +501,7 @@ static unsigned int getMixesCount(unsigned int chn)
 /*luadoc
 @function model.getMixesCount(channel)
 
-Get the number of Mixer lines that the specified Channel has 
+Get the number of Mixer lines that the specified Channel has
 
 @param channel (unsigned number) channel number (use 0 for CH1)
 
@@ -510,7 +520,7 @@ static int luaModelGetMixesCount(lua_State *L)
 /*luadoc
 @function model.getMix(channel, line)
 
-Get configuration for specified Mix  
+Get configuration for specified Mix
 
 @param channel (unsigned number) channel number (use 0 for CH1)
 
@@ -571,7 +581,7 @@ static int luaModelGetMix(lua_State *L)
 /*luadoc
 @function model.insertMix(channel, line, value)
 
-Insert a mixer line into Channel   
+Insert a mixer line into Channel
 
 @param channel (unsigned number) channel number (use 0 for CH1)
 
@@ -653,7 +663,7 @@ static int luaModelInsertMix(lua_State *L)
 /*luadoc
 @function model.deleteMix(channel, line)
 
-Delete mixer line from specified Channel  
+Delete mixer line from specified Channel
 
 @param channel (unsigned number) channel number (use 0 for CH1)
 
@@ -732,7 +742,7 @@ static int luaModelGetLogicalSwitch(lua_State *L)
 /*luadoc
 @function model.setLogicalSwitch(switch, value)
 
-Set Logical Switch parameters 
+Set Logical Switch parameters
 
 @param switch (unsigned number) logical switch number (use 0 for LS1)
 
@@ -1059,11 +1069,11 @@ Get Custom Function parameters
  * `func` (number) function index
  * `name` (string)  Name of track to play (only returned only returned if action is play track, sound or script)
  * `value` (number) value (only returned only returned if action is **not** play track, sound or script)
- * `mode` (number) mode (only returned only returned if action is **not** play track, sound or script) 
+ * `mode` (number) mode (only returned only returned if action is **not** play track, sound or script)
  * `param` (number) parameter (only returned only returned if action is **not** play track, sound or script)
  * `active` (number) 0 = disabled, 1 = enabled
 
-@status current Introduced in 2.0.0, TODO rename function 
+@status current Introduced in 2.0.0, TODO rename function
 */
 static int luaModelGetCustomFunction(lua_State *L)
 {
@@ -1098,10 +1108,10 @@ Set Custom Function parameters
 
 @param value (table) custom function parameters, see model.getCustomFunction() for table format
 
-@notice If a parameter is missing from the value, then 
+@notice If a parameter is missing from the value, then
 that parameter remains unchanged.
 
-@status current Introduced in 2.0.0, TODO rename function 
+@status current Introduced in 2.0.0, TODO rename function
 */
 static int luaModelSetCustomFunction(lua_State *L)
 {
@@ -1160,8 +1170,8 @@ Get servo parameters
  * `symetrical` (number) linear Subtrim 0 = Off, 1 = On
  * `revert` (number) irection 0 = ­­­---, 1 = INV
  * `curve`
-   * (number) Curve number (0 for Curve1) 
-   * or `nil` if no curve set 
+   * (number) Curve number (0 for Curve1)
+   * or `nil` if no curve set
 
 @status current Introduced in 2.0.0
 */
@@ -1196,7 +1206,7 @@ Set servo parameters
 
 @param value (table) servo parameters, see model.getOutput() for table format
 
-@notice If a parameter is missing from the value, then 
+@notice If a parameter is missing from the value, then
 that parameter remains unchanged.
 
 @status current Introduced in 2.0.0