ajout condition pour mieux afficher les string

achemin1
1 parent 533260c1
Showing 1 changed file with 25 additions and 24 deletions Show diff stats
src/GetUsbInfos.c
@@ -45,36 +45,37 @@ int main() {
       perror("libusb_open");
       exit(-1);
     }
-/*
-    // Si le méchant noyau est passé avant vous :
-    int interface = 0; // TEST : FONCTIONNE MAIS CORRESPOND A QUOI?
-    if (libusb_kernel_driver_active(handle, interface)) {
-      int statusKDriver = libusb_detach_kernel_driver(handle, interface);
-      if (statusKDriver != 0) {
-        perror("libusb_detach_kernel_driver");
-        exit(-1);
-      }
-    }
+    /*
+        // Si le méchant noyau est passé avant vous :
+        int interface = 0; // TEST : FONCTIONNE MAIS CORRESPOND A QUOI?
+        if (libusb_kernel_driver_active(handle, interface)) {
+          int statusKDriver = libusb_detach_kernel_driver(handle, interface);
+          if (statusKDriver != 0) {
+            perror("libusb_detach_kernel_driver");
+            exit(-1);
+          }
+        }
-    // lectures des configs?
-    int configuration = 0; // valueof("bConfigurationValue");
-    int statusConfig = libusb_set_configuration(handle, configuration);
-    if (statusConfig != 0) {
-      perror("libusb_set_configuration"); /*exit(-1);*/
- /*   }
-*/
+        // lectures des configs?
+        int configuration = 0; // valueof("bConfigurationValue");
+        int statusConfig = libusb_set_configuration(handle, configuration);
+        if (statusConfig != 0) {
+          perror("libusb_set_configuration"); /*exit(-1);*/
+    /*   }
+     */
     int MAXLEN_DESCRIPTOR_STRING = 200;
     uint8_t desc_idx = 2;
     uint16_t langid = 16;
     unsigned char data[200];
-
-	for(desc_idx = 0; desc_idx < 5; desc_idx++){
-    libusb_get_string_descriptor_ascii(handle, desc_idx,
-                               data, MAXLEN_DESCRIPTOR_STRING);
-
-    printf("Descriptor string : %s\n", data);
-}
+    // 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);
+    }
     /* ... some ... code */
     libusb_close(handle);
   }