auto switch ds mode

src/config.h

@@ -15,7 +15,7 @@ struct __attribute__((packed)) Config_body {
     uint8_t disable_pico_led; // bool
     uint8_t polling_rate_mode; // 0: 250Hz, 1: 500Hz, 2: real-time
     uint8_t haptics_buffer_length; // [16,128]
-    uint8_t controller_mode; // 0: DS5, 1: DSE 自动切换识别太麻烦了，懒的做了，期待pr
+    uint8_t controller_mode; // 0: DS5, 1: DSE, 2: Auto
 };
 
 struct __attribute__((packed)) Config {
@@ -33,5 +33,6 @@ const Config_body& get_config();
 void set_config(const uint8_t *new_config, const uint16_t len);
 void config_valid();
 void set_config(const Config_body &new_config);
+static bool is_dse = false;
 
 #endif //DS5_BRIDGE_CONFIG_H