Added support for the HORI licensed Steam Controller

include/SDL3/SDL_hints.h

@@ -1654,6 +1654,17 @@ extern "C" {
  */
 #define SDL_HINT_JOYSTICK_HIDAPI_STEAMDECK "SDL_JOYSTICK_HIDAPI_STEAMDECK"
 
+/**
+ *  A variable controlling whether the HIDAPI driver for HORI licensed Steam controllers should be used.
+ *
+ *  This variable can be set to the following values:
+ *    "0"       - HIDAPI driver is not used
+ *    "1"       - HIDAPI driver is used
+ *
+ *  The default is the value of SDL_HINT_JOYSTICK_HIDAPI
+ */
+#define SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI "SDL_JOYSTICK_HIDAPI_STEAM_HORI"
+
 /**
  * A variable controlling whether the HIDAPI driver for Nintendo Switch
  * controllers should be used.