diff --git a/Software/.gitignore b/Software/.gitignore
new file mode 100644
index 0000000..1746e32
--- /dev/null
+++ b/Software/.gitignore
@@ -0,0 +1,2 @@
+bin
+obj
diff --git a/Software/Makefile b/Software/Makefile
new file mode 100644
index 0000000..b02e953
--- /dev/null
+++ b/Software/Makefile
@@ -0,0 +1,56 @@
+BIN = bin
+OBJ = obj
+SRC = src
+INCLUDE = include
+CFLAGS =
+CLIBS = -lusb-1.0 -I"C:\Program Files\zLib\libusb-1.0.23\include"
+#sur le Windows d'Axel :
+CLIBS := ${CLIBS} -B"C:\Program Files\zLib\libusb-1.0.23\MinGW32\static"
+GNUMAKEFLAGS = --no-print-directory
+
+gcc = gcc
+#sur le Windows d'Axel :
+gcc := "/mnt/c/Program Files (x86)/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/bin/gcc.exe"
+
+
+DEBUG?=0
+ifeq ($(DEBUG), 0)
+	CFLAGS = -W -Wall
+else
+	CFLAGS = -W -Wall -g -O0 -DDEBUG
+endif
+
+
+
+all : main
+
+
+version :
+	${gcc} -v
+
+main : bin libusb_wrapper ${SRC}/main.c
+	${gcc} -o ${OBJ}/$@.o -c ${SRC}/$@.c -I ${INCLUDE} ${CLIBS} ${CFLAGS}
+	${gcc} -o ${BIN}/$@.exe ${OBJ}/main.o ${OBJ}/libusb_wrapper.o ${CFLAGS} ${CLIBS}
+
+demostep : main
+	${BIN}/main.exe demo4.1
+
+libs: libusb_wrapper
+
+libusb_wrapper: obj ${SRC}/libusb_wrapper.c ${INCLUDE}/libusb_wrapper.h
+	${gcc} -o ${OBJ}/$@.o -c ${SRC}/$@.c -I ${INCLUDE} ${CLIBS} ${CFLAGS}
+
+
+
+obj :
+	@-mkdir ${OBJ}
+
+bin :
+	@-mkdir ${BIN}
+
+clean :
+	rm -rf obj/*.o
+
+mrproper: clean
+	rm -rf bin
+	rm -rf obj
diff --git a/Software/hexToDec.sh b/Software/hexToDec.sh
new file mode 100644
index 0000000..a01673d
--- /dev/null
+++ b/Software/hexToDec.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if [ $# -eq 1 ]; then
+	echo "obase=10; ibase=16; $1" | bc
+else
+	echo "Type a hex number"
+	read hexNum
+	echo -n "The decimal value of $hexNum="
+	echo "obase=10; ibase=16; $hexNum" | bc
+fi
diff --git a/Software/include/libusb_wrapper.h b/Software/include/libusb_wrapper.h
new file mode 100644
index 0000000..dde7201
--- /dev/null
+++ b/Software/include/libusb_wrapper.h
@@ -0,0 +1,35 @@
+#ifndef LIBUSB_WRAPPER_H_
+#define LIBUSB_WRAPPER_H_
+
+#include <libusb-1.0/libusb.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void usbinit(libusb_context **context_ptr);
+void usbclose(libusb_context *context);
+
+void interfaceclaim(libusb_device_handle *handle,
+                    struct libusb_interface *interface);
+void interfaceclose(libusb_device_handle *handle,
+                    struct libusb_interface *interface);
+
+ssize_t getListDevices(libusb_context *context, libusb_device ***list_ptr);
+void getFromKernel(libusb_device_handle *handle, int interface);
+
+void displayDevices(libusb_context *context);
+void displayDevicesMore(libusb_context *context);
+
+void getFirstDeviceFromID(libusb_context *context, int vid, int pid,
+                          libusb_device **device);
+
+void getOurInterfaces(libusb_device *device,
+                      struct libusb_interface **int_hidjoy,
+                      struct libusb_interface **int_leds,
+                      struct libusb_interface **int_vibrators);
+
+void displayDeviceEndpoints();
+
+char getOnlyEndpoint(struct libusb_interface *interface);
+
+#endif
diff --git a/Software/src/libusb_wrapper.c b/Software/src/libusb_wrapper.c
new file mode 100644
index 0000000..45b8717
--- /dev/null
+++ b/Software/src/libusb_wrapper.c
@@ -0,0 +1,307 @@
+#include "libusb_wrapper.h"
+
+void usbinit(libusb_context **context_ptr) {
+  // libusb_context *context;
+  int statusInit = libusb_init(context_ptr);
+  if (statusInit != LIBUSB_SUCCESS) {
+    perror("libusb_init");
+    exit(-1);
+  }
+}
+
+void usbclose(libusb_context *context) { libusb_exit(context); }
+
+void interfaceclaim(libusb_device_handle *handle,
+                    struct libusb_interface *interface) {
+  const struct libusb_interface_descriptor *interface_desc =
+      &interface->altsetting[0]; // TODO enlever cette ligne, refactor
+
+  if (interface_desc->bInterfaceClass ==
+      LIBUSB_CLASS_VENDOR_SPEC) { // ON PEUT VERIFIER LA CLASS
+    printf("> vendor specific class\n");
+
+    int status =
+        libusb_claim_interface(handle, interface_desc->bInterfaceNumber);
+    if (status != 0) {
+      perror("libusb_claim_interface");
+      exit(-1);
+    }
+  }
+}
+
+void interfaceclose(libusb_device_handle *handle,
+                    struct libusb_interface *interface) {
+  const struct libusb_interface_descriptor *interface_desc =
+      &interface->altsetting[0];
+  int status =
+      libusb_release_interface(handle, interface_desc->bInterfaceNumber);
+  if (status != 0) {
+    perror("libusb_release_interface");
+    exit(-1);
+  }
+}
+
+// Si le méchant noyau est passé avant vous :
+void getFromKernel(libusb_device_handle *handle,
+                   int interface) { // private method for now
+  if (libusb_kernel_driver_active(handle, interface)) {
+    int statusKDriver = libusb_detach_kernel_driver(handle, interface);
+    if (statusKDriver != LIBUSB_SUCCESS) {
+      perror("libusb_detach_kernel_driver");
+      exit(-1);
+    }
+  }
+}
+
+ssize_t getListDevices(libusb_context *context, libusb_device ***list_ptr) {
+  ssize_t count = libusb_get_device_list(context, list_ptr);
+  if (count < 0) {
+    perror("libusb_get_device_list");
+    exit(-1);
+  }
+  return count;
+}
+
+void *_enumerateDevices(libusb_context *context,
+                        void (*func)(libusb_device *device)) {
+  libusb_device **list;
+  ssize_t count = getListDevices(context, &list);
+
+  ssize_t i = 0;
+  for (i = 0; i < count; i++) {
+    libusb_device *device = list[i];
+
+    func(device);
+  }
+
+  libusb_free_device_list(list, 1);
+
+  return NULL; // DBGONLY TEMP
+}
+
+// print readable string, not asked for tutoring
+void _printConfig(libusb_device *device) { // private method
+  // Ouverture du périphérique
+  libusb_device_handle *handle;
+  int statusDevice = libusb_open(device, &handle);
+  if (statusDevice != LIBUSB_SUCCESS) {
+    perror("libusb_open");
+    // return; //exit(-1);
+  }
+
+  int MAXLEN_DESCRIPTOR_STRING = 200;
+  uint8_t desc_idx = 2;
+  // uint16_t langid = 16;
+  unsigned char data[200];
+
+  // TEST 16
+  for (desc_idx = 0; desc_idx < 16; desc_idx++) {
+    int statusAscii = libusb_get_string_descriptor_ascii(
+        handle, desc_idx, data, MAXLEN_DESCRIPTOR_STRING);
+    if (statusAscii == -9) // TEST seems to be LIBUSB_ERROR
+      break;
+    printf(" - Descriptor string : %s ; %i\n", data, statusAscii);
+  }
+
+  libusb_close(handle);
+}
+
+void _displayOneDevice(libusb_device *device) {
+  struct libusb_device_descriptor desc;
+
+  int status = libusb_get_device_descriptor(device, &desc);
+  if (status != LIBUSB_SUCCESS) {
+    printf("Cannot get device desc : %s\n",
+           libusb_error_name(status)); // DBGONLY
+    perror("libusb_open");
+    return;
+  }
+
+  uint8_t bus = libusb_get_bus_number(device);
+  uint8_t address = libusb_get_device_address(device);
+
+  printf("Device Found @ (Bus:Address) %d:%d\n", bus, address);
+  printf("Vendor ID 0x0%x\n", desc.idVendor);
+  printf("Product ID 0x0%x\n", desc.idProduct);
+
+  // displayDeviceEndpoints(device); //Not really work on Axel@Alptop
+}
+
+void displayDevices(libusb_context *context) {
+  _enumerateDevices(context, _displayOneDevice);
+}
+
+void _displayOneDeviceMore(libusb_device *device) {
+  _displayOneDevice(device);
+  _printConfig(device);
+}
+
+void displayDevicesMore(libusb_context *context) {
+  _enumerateDevices(context, _displayOneDeviceMore);
+}
+
+// get device from iteration (and not from not recommanded function :
+// ugly using global vars ?? Cannot communicate between getFirstDeviceFromID and
+// _getFirstDeviceFromID
+int g_vid;
+int g_pid;
+libusb_device *g_device = NULL;
+void _getFirstDeviceFromID(libusb_device *device) {
+  struct libusb_device_descriptor desc;
+
+  int status = libusb_get_device_descriptor(device, &desc);
+  if (status != LIBUSB_SUCCESS) {
+    printf("Cannot get device desc : %s\n",
+           libusb_error_name(status)); // DBGONLY
+    perror("libusb_open");
+    return;
+  }
+
+  if (desc.idVendor == g_vid && desc.idProduct == g_pid) {
+    g_device = device;
+  }
+}
+
+void getFirstDeviceFromID(libusb_context *context, int vid, int pid,
+                          libusb_device **device) {
+  g_vid = vid; // pass parameters for enumeration
+  g_pid = pid; // idem
+  _enumerateDevices(context, _getFirstDeviceFromID);
+  *device = g_device; // get return from enumeration
+}
+
+// void getDevicesFromID(vid, pid) //return array
+
+void displayDeviceEndpoints(libusb_device_handle *handle) {
+  // recover pointer from handle
+  libusb_device *device;
+  device = libusb_get_device(handle);
+
+  // lectures des configs => on prend la première configuration pour l'instant
+  /*int configuration = 0; // valueof("bConfigurationValue");
+  int statusConfig = libusb_set_configuration(handle, configuration);
+  if (statusConfig != LIBUSB_SUCCESS) {
+      perror("libusb_set_configuration");
+      return;
+  }*/
+
+  // 4.2 configuration du périph usb
+  struct libusb_config_descriptor *config;
+  int statusFetchConfig = libusb_get_active_config_descriptor(device, &config);
+  if (statusFetchConfig != LIBUSB_SUCCESS) {
+    perror("libusb_get_active_config_descriptor");
+    return;
+  }
+
+  // caractéristiques globales
+  printf("Config.bConfigurationValue : %d\n", config->bConfigurationValue);
+  printf("Config/ bLength:%d\nbDescriptorType:%d\nbNumInterfaces:%d\n",
+         config->bLength, config->bDescriptorType, config->bNumInterfaces);
+
+  // itération des interfaces
+  printf("Itération de l'interface\n");
+  for (int indexInterface = 0; indexInterface < config->bNumInterfaces;
+       indexInterface++) {
+    printf("-indexInterface=%d\n", indexInterface);
+    printf("-Altsetting=%d\n",
+           config->interface[indexInterface].num_altsetting);
+
+    const struct libusb_interface *interface =
+        &config->interface[indexInterface];
+
+    // if 1 setting (or more)
+    if (interface->num_altsetting != 0) {
+      const struct libusb_interface_descriptor *interface_desc =
+          &interface->altsetting[0];
+
+      printf("--bNumEndpoints=%d\n", interface_desc->bNumEndpoints);
+      printf("--bDescriptorType=%d\n", interface_desc->bDescriptorType);
+
+      for (int indexEndpoints = 0;
+           indexEndpoints < interface_desc->bNumEndpoints; indexEndpoints++) {
+        const struct libusb_endpoint_descriptor *endpoint_desc =
+            &interface_desc->endpoint[indexEndpoints];
+        printf("---bDescriptorType=%d\n", endpoint_desc->bDescriptorType);
+        printf("---bEndpointAddress=%d\n", endpoint_desc->bEndpointAddress);
+
+        if (endpoint_desc->extra != NULL)
+          printf("---extra: %s\n", endpoint_desc->extra);
+        if (endpoint_desc->bmAttributes ==
+            LIBUSB_TRANSFER_TYPE_INTERRUPT) // TODO AJOUT MASQUE ? (voir doc)
+          printf("---is of type INTERRUPT\n");
+      }
+    }
+
+    // Affichez l’indice et le numéro de chaque interface détectée et réclamée.
+    // Affichez aussi les points d’accès trouvés en précisant ceux sauvés.
+
+    /*
+            //int interface=valueof("bInterfaceNumber");
+            int
+       status=libusb_claim_interface(handle,interface->bInterfaceNumber);
+            if(status!=0){ perror("libusb_claim_interface"); exit(-1); }
+
+            status=libusb_release_interface(handle,interface->bInterfaceNumber);
+            if(status!=0){ perror("libusb_release_interface"); exit(-1); }
+
+            //claim_interface(.., config interface altsetting bInterfaceNumber
+            //config interface altsetting endpoint bmAttributes ==
+       LIBUSB_TRANSFER_TYPE_INTERRUPT
+            //add des enpoint unint8_t*/
+
+    // DESCRIPTOR.C /.H :décommenter
+
+    // IL FAUT RELEASE UNIQUEMENT LES INTERFACES QUI NE SONT PAS DES HID
+  }
+
+  printf("\n");
+
+  libusb_close(handle);
+}
+
+void getOurInterfaces(libusb_device *device,
+                      struct libusb_interface **int_hidjoy,
+                      struct libusb_interface **int_leds,
+                      struct libusb_interface **int_vibrators) {
+  struct libusb_config_descriptor *config;
+  int statusFetchConfig = libusb_get_active_config_descriptor(device, &config);
+  if (statusFetchConfig != LIBUSB_SUCCESS) {
+    perror("libusb_get_active_config_descriptor");
+    return;
+  }
+
+  // itération des interfaces
+  for (int indexInterface = 0; indexInterface < config->bNumInterfaces;
+       indexInterface++) {
+
+    const struct libusb_interface *interface =
+        &config->interface[indexInterface];
+
+    // todo use le descriptor pour avoir bInterfaceNumber?
+    if (indexInterface == 0) {
+      *int_hidjoy = (struct libusb_interface *)interface;
+    } else if (indexInterface == 1) {
+      *int_leds = (struct libusb_interface *)interface;
+    } else if (indexInterface == 2) {
+      *int_vibrators = (struct libusb_interface *)interface;
+    }
+
+    //#define pour les indices correspondants aux interfaces
+    // variables globales
+  }
+}
+
+char getOnlyEndpoint(struct libusb_interface *interface) {
+
+  const struct libusb_interface_descriptor *interface_desc =
+      &interface->altsetting[0];
+
+  const struct libusb_endpoint_descriptor *endpoint_desc =
+      &interface_desc->endpoint[0];
+
+  if (endpoint_desc->bmAttributes !=
+      LIBUSB_TRANSFER_TYPE_INTERRUPT) // ON PEUT VERIFIER LE TRANSFER TYPE
+    printf("> is NOT of type INTERRUPT\n");
+
+  return (char)endpoint_desc->bEndpointAddress;
+}
diff --git a/Software/src/main.c b/Software/src/main.c
new file mode 100644
index 0000000..b78130b
--- /dev/null
+++ b/Software/src/main.c
@@ -0,0 +1,132 @@
+#include "libusb_wrapper.h"
+#include <stdio.h>
+#include <string.h>
+
+#define VID 1003
+#define PID 8259
+
+int main(int argc, char *argv[]) {
+  printf("Hello World :-|\n");
+
+  libusb_context *context;
+  usbinit(&context);
+#ifdef DEBUG
+  libusb_set_option(context, LIBUSB_OPTION_LOG_LEVEL, LIBUSB_LOG_LEVEL_DEBUG);
+#endif
+
+  if (argc > 1) {
+    // command mode
+    if (strcmp(argv[1], "demo4.1") == 0) { // if 4.1
+      printf("\e[91mDemo 4.1\e[39m\n");
+      displayDevices(context);
+    } else if (strcmp(argv[1], "demo4.1plus") == 0) { // if 4.1 bonus
+      printf("\e[91mDemo 4.1\e[39m\n");
+      displayDevicesMore(context);
+    } else if (strcmp(argv[1], "demo4.2") == 0) { // if 4.2
+      printf("\e[91mDemo 4.2\e[39m\n");
+
+      if (argc > 3) {
+        uint16_t vendor_id;
+        uint16_t product_id;
+        sscanf(argv[2], "%hu", &vendor_id);
+        sscanf(argv[3], "%hu", &product_id);
+
+        libusb_device_handle *handle;
+        handle =
+            libusb_open_device_with_vid_pid(context, vendor_id, product_id);
+        if (handle != NULL) {
+          printf("Show endpoints of VID:%hu;PID:%hu\n", vendor_id, product_id);
+          displayDeviceEndpoints(handle);
+        } else {
+          printf("Error while getting handle of VID:%hu;PID:%hu\n", vendor_id,
+                 product_id);
+        }
+      } else {
+        printf("Error, need VID and PID\n");
+      }
+    } else {
+      printf("Wrong command\n");
+    }
+
+  } else {
+    // interactive mode
+    printf("Welcome to interactive mode\n");
+    printf("Compiled for VID:PID => %d:%d\n", VID, PID);
+
+    // Find the device
+    printf("Iterate list of devices, and getting the right one\n");
+    libusb_device *device = NULL;
+    getFirstDeviceFromID(context, VID, PID, &device);
+    // code
+    if (device == NULL) {
+      printf("Error : cannot find the device !\n");
+      return 1;
+    }
+
+    // take the handle
+    libusb_device_handle *device_handle = NULL;
+    if (libusb_open(device, &device_handle) != 0) {
+      printf("Error : cannot handle the device\n");
+      return 1;
+    }
+
+    // Take the interfaces
+    printf("\nSearch for interfaces\n");
+    struct libusb_interface *int_hidjoy = NULL;
+    struct libusb_interface *int_leds = NULL;
+    struct libusb_interface *int_vibrators = NULL;
+    getOurInterfaces(device, &int_hidjoy, &int_leds, &int_vibrators);
+
+    // Claim interface
+    printf("\nClaim interfaces ...\n");
+    printf("-Leds\n");
+    interfaceclaim(device_handle, int_leds);
+    printf("-Vibrators\n");
+    interfaceclaim(device_handle, int_vibrators);
+
+    // récupération des endpoints
+    printf("\nRécupération endpoints\n");
+    printf("-Leds");
+    int endpoint_leds =
+        getOnlyEndpoint(int_leds); /* ID of endpoint (bit 8 is 0) */
+    printf(" is %d\n", endpoint_leds);
+    printf("-Vibrators");
+    int endpoint_vibrators =
+        getOnlyEndpoint(int_vibrators); /* ID of endpoint (bit 8 is 0) */
+    printf(" is %d\n", endpoint_vibrators);
+
+    /*LE CODE UTILE*/
+    int i;
+    for(i = 0 ; i<5 ; i++) {
+      unsigned char data[2] = {0xff, 0xff}; // data to send or to receive
+      int size = 2;       // size to send or maximum size to receive
+      int timeout = 1000; // timeout in ms
+
+      // OUT interrupt, from host to device
+      int bytes_out;
+      printf("%p %02X\n", device_handle, endpoint_leds);
+      int status = libusb_interrupt_transfer(device_handle, endpoint_leds, data,
+                                             size, &bytes_out, timeout);
+      if (status != 0) {
+        perror("libusb_interrupt_transfer");
+        exit(-1);
+      }
+
+      //sleep(1); demande l'ajout de macro pour la portabilité
+    }
+    /*FIN DU CODE UTILE*/
+
+    // Close
+    printf("\nUnclaim interfaces ...\n");
+    printf("-Leds\n");
+    interfaceclose(device_handle, int_leds);
+    printf("-Vibrators\n");
+    interfaceclose(device_handle, int_vibrators);
+
+    printf("Finished\n");
+  }
+
+  usbclose(context);
+
+  return 0;
+}
--
libgit2 0.21.2