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diff --git a/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/device.h b/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/device.h
deleted file mode 100644
index f6d2380..0000000
--- a/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/device.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (c) 2015-2018 Nitrokey UG
- *
- * This file is part of libnitrokey.
- *
- * libnitrokey is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * any later version.
- *
- * libnitrokey is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with libnitrokey. If not, see <http://www.gnu.org/licenses/>.
- *
- * SPDX-License-Identifier: LGPL-3.0
- */
-
-#ifndef DEVICE_H
-#define DEVICE_H
-#include <chrono>
-#include "hidapi/hidapi.h"
-#include <cstdint>
-#include <string>
-#include <vector>
-
-#define HID_REPORT_SIZE 65
-
-#include <atomic>
-
-namespace nitrokey {
-namespace device {
- using namespace std::chrono_literals;
- using std::chrono::milliseconds;
-
- struct EnumClassHash
- {
- template <typename T>
- std::size_t operator()(T t) const
- {
- return static_cast<std::size_t>(t);
- }
- };
-
-enum class DeviceModel{
- PRO,
- STORAGE
-};
-
-#include <atomic>
-
-class Device {
-
-public:
-
- struct ErrorCounters{
- using cnt = std::atomic_int;
- cnt wrong_CRC;
- cnt CRC_other_than_awaited;
- cnt busy;
- cnt total_retries;
- cnt sending_error;
- cnt receiving_error;
- cnt total_comm_runs;
- cnt successful_storage_commands;
- cnt command_successful_recv;
- cnt recv_executed;
- cnt sends_executed;
- cnt busy_progressbar;
- cnt command_result_not_equal_0_recv;
- cnt communication_successful;
- cnt low_level_reconnect;
- std::string get_as_string();
-
- } m_counters = {};
-
-
- Device(const uint16_t vid, const uint16_t pid, const DeviceModel model,
- const milliseconds send_receive_delay, const int retry_receiving_count,
- const milliseconds retry_timeout);
-
- virtual ~Device();
-
- // lack of device is not actually an error,
- // so it doesn't throw
- virtual bool connect();
- virtual bool disconnect();
-
- /*
- * Sends packet of HID_REPORT_SIZE.
- */
- virtual int send(const void *packet);
-
- /*
- * Gets packet of HID_REPORT_SIZE.
- * Can sleep. See below.
- */
- virtual int recv(void *packet);
-
- /***
- * Returns true if some device is visible by OS with given VID and PID
- * whether the device is connected through HID API or not.
- * @return true if visible by OS
- */
- bool could_be_enumerated();
- std::vector<std::string> enumerate();
-
-
- void show_stats();
-// ErrorCounters get_stats(){ return m_counters; }
- int get_retry_receiving_count() const { return m_retry_receiving_count; };
- int get_retry_sending_count() const { return m_retry_sending_count; };
- std::chrono::milliseconds get_retry_timeout() const { return m_retry_timeout; };
- std::chrono::milliseconds get_send_receive_delay() const {return m_send_receive_delay;}
-
- int get_last_command_status() {int a = std::atomic_exchange(&last_command_status, static_cast<uint8_t>(0)); return a;};
- void set_last_command_status(uint8_t _err) { last_command_status = _err;} ;
- bool last_command_sucessfull() const {return last_command_status == 0;};
- DeviceModel get_device_model() const {return m_model;}
- void set_receiving_delay(std::chrono::milliseconds delay);
- void set_retry_delay(std::chrono::milliseconds delay);
- static void set_default_device_speed(int delay);
- void setDefaultDelay();
- void set_path(const std::string path);
-
-
- private:
- std::atomic<uint8_t> last_command_status;
- void _reconnect();
- bool _connect();
- bool _disconnect();
-
-protected:
- const uint16_t m_vid;
- const uint16_t m_pid;
- const DeviceModel m_model;
-
- /*
- * While the project uses Signal11 portable HIDAPI
- * library, there's no way of doing it asynchronously,
- * hence polling.
- */
- const int m_retry_sending_count;
- const int m_retry_receiving_count;
- std::chrono::milliseconds m_retry_timeout;
- std::chrono::milliseconds m_send_receive_delay;
- std::atomic<hid_device *>mp_devhandle;
- std::string m_path;
-
- static std::atomic_int instances_count;
- static std::chrono::milliseconds default_delay ;
-};
-
-class Stick10 : public Device {
- public:
- Stick10();
-
-};
-
-class Stick20 : public Device {
- public:
- Stick20();
-};
-}
-}
-#endif