diff --git a/10_lightning_node_pro_led/lightning_node_pro_led.c b/10_lightning_node_pro_led/lightning_node_pro_led.c
index 2f9ba8f..5b30171 100644
--- a/10_lightning_node_pro_led/lightning_node_pro_led.c
+++ b/10_lightning_node_pro_led/lightning_node_pro_led.c
@@ -5,17 +5,54 @@
 #define USB_VENDOR_ID_CORSAIR 0x1b1c
 #define USB_DEVICE_ID_LIGHTNING_NODE_PRO 0x0c0b
 
+#define NUMBER_OF_ZONES_PER_LL120_FAN 16
+#define LIGHTNODE_PRO_MAX_FAN 6
+
+#define MSG_SIZE 64
+
+#define RED_COLOR 0x00
+#define BLUE_COLOR 0x01
+#define GREEN_COLOR 0x02
+
+static short int number_of_fan = 1;
+module_param(number_of_fan, short, 0000);
+MODULE_PARM_DESC(number_of_fan,
+		 "Number of LL120 FAN connected to the lightning node pro");
+
+struct lightning_node_pro_led_data {
+	struct hid_device *hdev;
+	struct mutex lock;
+};
+
 static int lightning_node_pro_led_probe(struct hid_device *hdev,
 					const struct hid_device_id *id)
 {
 	pr_info("Détection USB pour Lightning Node Pro\n");
 
+	int ret;
+	struct lightning_node_pro_led_data *data;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->hdev = hdev;
+	mutex_init(&data->lock);
+	hid_set_drvdata(hdev, data);
+
 	return 0;
+
+free_ldata:
+	kfree(data);
+
+	return ret;
 }
 
-static void lightning_node_pro_led_remove(struct hid_device *dev)
+static void lightning_node_pro_led_remove(struct hid_device *hdev)
 {
+	struct lightning_node_pro_led_data *data = hid_get_drvdata(hdev);
 	pr_info("Retrait USB pour Lightning Node Pro\n");
+	kfree(data);
 }
 
 static struct hid_device_id lightning_node_pro_led_table[] = {