Tizen Developers

Hello,

We are developing over a custom hardware which shows few sewrvice. WE try to connect them and read from Gear Application.

For Read it is giving value 0 and for write it is giving failure.

Here is my code:

void _bt_gatt_connection_state_changed_cb(int result, bool connected,
    	const char *remote_address, void *user_data) {
	dlog_print(DLOG_INFO, LOG_TAG, "State Changed");
	if (connected) {
		remote_addresss = remote_address;
		dlog_print(DLOG_INFO, LOG_TAG, "YES      LE connected");
		//	ret = bt_gatt_client_create(remote_address, &client);
		//	if (ret == BT_ERROR_NONE) {
		dlog_print(DLOG_INFO, LOG_TAG, "Created Client");
			char *svc_uuid = "xxx"; // Custom service
			char *chr_uuid = "xxx"; // Custom Char
	//	char *svc_uuid = "0000180f-0000-1000-8000-00805f9b34fb"; // Battery service
	//	char *chr_uuid = "00002a19-0000-1000-8000-00805f9b34fb"; // Battery level
		//
		int len = 0;

		char *value = NULL;

		bt_gatt_h svc = NULL;
		bt_gatt_h char_svc = NULL;
		bt_gatt_h chr = NULL;
		bt_gatt_h desc = NULL;

		ret = bt_gatt_client_create("xx:xx:xx:xx:xx:xx", &client);
		if (ret == BT_ERROR_NONE) {
			dlog_print(DLOG_INFO, LOG_TAG, "Client created");
		}
		//Get the service
		ret = bt_gatt_client_get_service(client, svc_uuid, &svc);
		if (ret != BT_ERROR_NONE) {
			dlog_print(DLOG_INFO, LOG_TAG,
					"bt_gatt_client_get_service is failed : %d", ret);

			//  return;
		} else {
			//GOt Service
			dlog_print(DLOG_INFO, LOG_TAG,
					"bt_gatt_client_get_service is success ");
			ret = bt_gatt_get_value(svc, &value, &len);
			if (ret != BT_ERROR_NONE) {
				dlog_print(DLOG_INFO, LOG_TAG,
						"bt_gatt_get_value is failed : %d", ret);
			} else {
				dlog_print(DLOG_INFO, LOG_TAG,
						"bt_gatt_get_value for service is : %d", value, " %s",
						value);

			}
			//Get Char
			ret = bt_gatt_service_get_characteristic(svc, chr_uuid, &chr);
			if (ret != BT_ERROR_NONE) {
				dlog_print(DLOG_INFO, LOG_TAG,
						"bt_gatt_service_get_characteristic is failed : %d",
						ret);

			} else {
				dlog_print(DLOG_INFO, LOG_TAG,
						"bt_gatt_service_get_characteristic is success ");
//Read value
				ret = bt_gatt_get_value(chr, &value, &len);
				int i = 0;
				F
				if (ret != BT_ERROR_NONE) {
					dlog_print(DLOG_INFO, LOG_TAG,
							"bt_gatt_get_value is failed : %d", ret);
				} else {
					dlog_print(DLOG_INFO, LOG_TAG,
							"bt_gatt_get_value is success : %d", len);
					for (i = 0; i < len; i++) {
						dlog_print(DLOG_INFO, LOG_TAG, "value %u", value[i]);
					}
					//  dlog_print(DLOG_INFO, LOG_TAG, "bt_gatt_get_value for char is : %d", value," %s", value);

				}
				int char_value = 30;
				//Set int value
				ret = bt_gatt_set_int_value(chr, BT_DATA_TYPE_UINT8, char_value,
						1);
				if (ret == BT_ERROR_NONE)
					dlog_print(DLOG_INFO, LOG_TAG, "Success in write");
				else
					dlog_print(DLOG_INFO, LOG_TAG, "Failure in write %d ", ret);
				ret = bt_gatt_client_read_value(chr,
						__bt_gatt_client_read_complete_cb, NULL);
				if (ret != BT_ERROR_NONE) {
					dlog_print(DLOG_INFO, LOG_TAG,
							"bt_gatt_client_read_value is failed : %d", ret);

				} else {
					dlog_print(DLOG_INFO, LOG_TAG,
							"bt_gatt_client_read_value is success ");

				}

			}

		}

		//	}

	} else
		dlog_print(DLOG_INFO, LOG_TAG, "LE disconnected");
}

Here are the logs:

) : Connected to our LE device.
) : State Changed
) : YES      LE connected
) : Created Client
) : Client created
) : bt_gatt_client_get_service is success 
) : bt_gatt_get_value is failed : -22
) : bt_gatt_service_get_characteristic is success 
) : bt_gatt_get_value is success : 0
) : Failure in write
) : bt_gatt_client_read_value is success 
) : Read Success for uuid : (xxx)
) : data : (0)
) : State Changed
) : LE disconnected

Could some one please help me?

Regards,

Shraddha