Added connection management

src/ergodox.hpp

@@ -32,15 +32,22 @@ class Ergodox {
 
 		~Ergodox();
 
-		int write(uint8_t cmd, const uint8_t* data, uint8_t data_len) const;
+		bool try_connect();
+		void disconnect();
+		void test_connection();
 
 		bool read();
+		bool write(uint8_t cmd, const uint8_t* data, uint8_t data_len);
+
 
 		// Read buffer, len = packet_size.
 		// Filled by read().
 		uint8_t read_buf[RAW_EPSIZE];
 
+
+		// Getter methods
 		uint8_t get_animation_mode() const { return animation_mode; }
+		bool is_connected() const { return connected; }
 
 	private:
 		Ergodox(
@@ -55,14 +62,16 @@ class Ergodox {
 		//Ergodox(Ergodox& other);
 		//Ergodox& operator=(Ergodox& other);
 
-		void open();
-		void close();
-
 		// HID device.
 		// NULL if not opened.
 		hid_device* handle;
 
 		// Keyboard state variables.
 		// Updated by read().
+
+		// Which animation is the keyboard running right now?
+		// See CMD_SEND_STATE in commands.h for docs.
 		uint8_t animation_mode;
+		// Are we connected to a keyboard right now?
+		bool connected;
 };