diff --git a/examples/board_qc/board_qc.ino b/examples/board_qc/board_qc.ino
index 2318e5b2..a9ceda54 100644
--- a/examples/board_qc/board_qc.ino
+++ b/examples/board_qc/board_qc.ino
@@ -16,241 +16,235 @@ USB_DEVICE_DESCRIPTOR buf;
 USB Usb;
 //USBHub hub(&Usb);
 
-            
-void setup()
-{
-  laststate=0;
-  Serial.begin( 115200 );
-  E_Notify(PSTR("\r\nCircuits At Home 2011"),0x80);
-  E_Notify(PSTR("\r\nUSB Host Shield Quality Control Routine"),0x80);  
-  /* SPI quick test - check revision register */
-  E_Notify(PSTR("\r\nReading REVISION register... Die revision "),0x80);
-  Usb.Init();
-  {
-    uint8_t tmpbyte = Usb.regRd( rREVISION );
-    switch( tmpbyte ) {
-      case( 0x01):  //rev.01
-        E_Notify(PSTR("01"),0x80);
-        break;
-    case( 0x12):  //rev.02
-        E_Notify(PSTR("02"),0x80);
-        break;
-    case( 0x13):  //rev.03
-        E_Notify(PSTR("03"),0x80);
-        break;
-    default:
-      E_Notify(PSTR("invalid. Value returned: "),0x80);
-      print_hex( tmpbyte, 8 );
-      halt55();
-      break;
-    }//switch( tmpbyte...
-  }//check revision register
-  /* SPI long test */
-  {
-    E_Notify(PSTR("\r\nSPI long test. Transfers 1MB of data. Each dot is 64K"),0x80); 
-    uint8_t sample_wr = 0;
-    uint8_t sample_rd = 0;
-    uint8_t gpinpol_copy = Usb.regRd( rGPINPOL );
-    for( uint8_t i = 0; i < 16; i++ ) {
-      for( uint16_t j = 0; j < 65535; j++ ) {
-        Usb.regWr( rGPINPOL, sample_wr );
-        sample_rd = Usb.regRd( rGPINPOL );
-        if( sample_rd != sample_wr ) {
-          E_Notify(PSTR("\r\nTest failed.  "),0x80);
-          E_Notify(PSTR("Value written: "),0x80);
-          print_hex( sample_wr, 8 );
-          E_Notify(PSTR(" read: "),0x80);
-          print_hex( sample_rd, 8 ); 
-          halt55();
-        }//if( sample_rd != sample_wr..
-         sample_wr++;
-      }//for( uint16_t j...
-      E_Notify(PSTR("."),0x80);
-    }//for( uint8_t i...
-    Usb.regWr( rGPINPOL, gpinpol_copy );
-    E_Notify(PSTR(" SPI long test passed"),0x80);    
-  }//SPI long test
-  /* GPIO test */
-  /* in order to simplify board layout, GPIN pins on text fixture are connected to GPOUT */
-  /* in reverse order, i.e, GPIN0 is connected to GPOUT7, GPIN1 to GPOUT6, etc. */
-  {
-    uint8_t tmpbyte;
-    E_Notify(PSTR("\r\nGPIO test. Connect GPIN0 to GPOUT7, GPIN1 to GPOUT6, and so on"),0x80);
-    for( uint8_t sample_gpio = 0; sample_gpio < 255; sample_gpio++ ) {
-      Usb.gpioWr( sample_gpio );
-      tmpbyte = Usb.gpioRd();
-      /* bit reversing code copied vetbatim from http://graphics.stanford.edu/~seander/bithacks.html#BitReverseObvious */
-      tmpbyte  = ((tmpbyte * 0x0802LU & 0x22110LU) | (tmpbyte * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
-      if( sample_gpio != tmpbyte ) {
-        E_Notify(PSTR("\r\nTest failed. Value written: "),0x80);
-        print_hex( sample_gpio, 8 );
-        E_Notify(PSTR(" Value read: "),0x80);
-        print_hex( tmpbyte , 8 );
-        E_Notify(PSTR(" "),0x80);
-        press_any_key();
-        break;
-      }//if( sample_gpio != tmpbyte...
-    }//for( uint8_t sample_gpio...
-    E_Notify(PSTR("\r\nGPIO test passed."),0x80);            
-  }//GPIO test
-  /* PLL test. Stops/starts MAX3421E oscillator several times */
-  {
-  E_Notify(PSTR("\r\nPLL test. 100 chip resets will be performed"),0x80);
-  /* check current state of the oscillator */  
-  if(!( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ )) {  //wrong state - should be on
-    E_Notify(PSTR("\r\nCurrent oscillator state unexpected."),0x80);  
-    press_any_key();
-  }  
-  /* Restart oscillator */
-  E_Notify(PSTR("\r\nResetting oscillator\r\n"),0x80);
-  for( uint16_t i = 0; i < 100; i++ ) {
-    E_Notify(PSTR("\rReset number "),0x80);
-    Serial.print( i, DEC );
-    Usb.regWr( rUSBCTL, bmCHIPRES );  //reset    
-    if( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ ) { //wrong state - should be off
-      E_Notify(PSTR("\r\nCurrent oscillator state unexpected."),0x80);
-      halt55();
-    }
-    Usb.regWr( rUSBCTL, 0x00 ); //release from reset
-    uint16_t j = 0;
-    for( j = 0; j < 65535; j++ ) { //tracking off to on time
-      if( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ ) {
-        E_Notify(PSTR(" Time to stabilize - "),0x80);
-        Serial.print( j, DEC );
-        E_Notify(PSTR(" cycles\r\n"),0x80);
-        break;
-      }
-    }//for( uint16_t j = 0; j < 65535; j++    
-    if( j == 0 ) {
-      E_Notify(PSTR("PLL failed to stabilize"),0x80);
-      press_any_key();
-    }
-  }//for( uint8_t i = 0; i < 255; i++
-    
-  }//PLL test
-  /* initializing USB stack */
-    if (Usb.Init() == -1) {
-      E_Notify(PSTR("\r\nOSCOKIRQ failed to assert"),0x80);
-      halt55();
-  }
-  E_Notify(PSTR("\r\nChecking USB device communication.\r\n"),0x80);
+void setup() {
+        laststate = 0;
+        Serial.begin(115200);
+        E_Notify(PSTR("\r\nCircuits At Home 2011"), 0x80);
+        E_Notify(PSTR("\r\nUSB Host Shield Quality Control Routine"), 0x80);
+        /* SPI quick test - check revision register */
+        E_Notify(PSTR("\r\nReading REVISION register... Die revision "), 0x80);
+        Usb.Init();
+        {
+                uint8_t tmpbyte = Usb.regRd(rREVISION);
+                switch (tmpbyte) {
+                        case( 0x01): //rev.01
+                                E_Notify(PSTR("01"), 0x80);
+                                break;
+                        case( 0x12): //rev.02
+                                E_Notify(PSTR("02"), 0x80);
+                                break;
+                        case( 0x13): //rev.03
+                                E_Notify(PSTR("03"), 0x80);
+                                break;
+                        default:
+                                E_Notify(PSTR("invalid. Value returned: "), 0x80);
+                                print_hex(tmpbyte, 8);
+                                halt55();
+                                break;
+                }//switch( tmpbyte...
+        }//check revision register
+        /* SPI long test */
+        {
+                E_Notify(PSTR("\r\nSPI long test. Transfers 1MB of data. Each dot is 64K"), 0x80);
+                uint8_t sample_wr = 0;
+                uint8_t sample_rd = 0;
+                uint8_t gpinpol_copy = Usb.regRd(rGPINPOL);
+                for (uint8_t i = 0; i < 16; i++) {
+                        for (uint16_t j = 0; j < 65535; j++) {
+                                Usb.regWr(rGPINPOL, sample_wr);
+                                sample_rd = Usb.regRd(rGPINPOL);
+                                if (sample_rd != sample_wr) {
+                                        E_Notify(PSTR("\r\nTest failed.  "), 0x80);
+                                        E_Notify(PSTR("Value written: "), 0x80);
+                                        print_hex(sample_wr, 8);
+                                        E_Notify(PSTR(" read: "), 0x80);
+                                        print_hex(sample_rd, 8);
+                                        halt55();
+                                }//if( sample_rd != sample_wr..
+                                sample_wr++;
+                        }//for( uint16_t j...
+                        E_Notify(PSTR("."), 0x80);
+                }//for( uint8_t i...
+                Usb.regWr(rGPINPOL, gpinpol_copy);
+                E_Notify(PSTR(" SPI long test passed"), 0x80);
+        }//SPI long test
+        /* GPIO test */
+        /* in order to simplify board layout, GPIN pins on text fixture are connected to GPOUT */
+        /* in reverse order, i.e, GPIN0 is connected to GPOUT7, GPIN1 to GPOUT6, etc. */
+        {
+                uint8_t tmpbyte;
+                E_Notify(PSTR("\r\nGPIO test. Connect GPIN0 to GPOUT7, GPIN1 to GPOUT6, and so on"), 0x80);
+                for (uint8_t sample_gpio = 0; sample_gpio < 255; sample_gpio++) {
+                        Usb.gpioWr(sample_gpio);
+                        tmpbyte = Usb.gpioRd();
+                        /* bit reversing code copied vetbatim from http://graphics.stanford.edu/~seander/bithacks.html#BitReverseObvious */
+                        tmpbyte = ((tmpbyte * 0x0802LU & 0x22110LU) | (tmpbyte * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
+                        if (sample_gpio != tmpbyte) {
+                                E_Notify(PSTR("\r\nTest failed. Value written: "), 0x80);
+                                print_hex(sample_gpio, 8);
+                                E_Notify(PSTR(" Value read: "), 0x80);
+                                print_hex(tmpbyte, 8);
+                                E_Notify(PSTR(" "), 0x80);
+                                press_any_key();
+                                break;
+                        }//if( sample_gpio != tmpbyte...
+                }//for( uint8_t sample_gpio...
+                E_Notify(PSTR("\r\nGPIO test passed."), 0x80);
+        }//GPIO test
+        /* PLL test. Stops/starts MAX3421E oscillator several times */
+        {
+                E_Notify(PSTR("\r\nPLL test. 100 chip resets will be performed"), 0x80);
+                /* check current state of the oscillator */
+                if (!(Usb.regRd(rUSBIRQ) & bmOSCOKIRQ)) { //wrong state - should be on
+                        E_Notify(PSTR("\r\nCurrent oscillator state unexpected."), 0x80);
+                        press_any_key();
+                }
+                /* Restart oscillator */
+                E_Notify(PSTR("\r\nResetting oscillator\r\n"), 0x80);
+                for (uint16_t i = 0; i < 100; i++) {
+                        E_Notify(PSTR("\rReset number "), 0x80);
+                        Serial.print(i, DEC);
+                        Usb.regWr(rUSBCTL, bmCHIPRES); //reset
+                        if (Usb.regRd(rUSBIRQ) & bmOSCOKIRQ) { //wrong state - should be off
+                                E_Notify(PSTR("\r\nCurrent oscillator state unexpected."), 0x80);
+                                halt55();
+                        }
+                        Usb.regWr(rUSBCTL, 0x00); //release from reset
+                        uint16_t j = 0;
+                        for (j = 0; j < 65535; j++) { //tracking off to on time
+                                if (Usb.regRd(rUSBIRQ) & bmOSCOKIRQ) {
+                                        E_Notify(PSTR(" Time to stabilize - "), 0x80);
+                                        Serial.print(j, DEC);
+                                        E_Notify(PSTR(" cycles\r\n"), 0x80);
+                                        break;
+                                }
+                        }//for( uint16_t j = 0; j < 65535; j++
+                        if (j == 0) {
+                                E_Notify(PSTR("PLL failed to stabilize"), 0x80);
+                                press_any_key();
+                        }
+                }//for( uint8_t i = 0; i < 255; i++
+
+        }//PLL test
+        /* initializing USB stack */
+        if (Usb.Init() == -1) {
+                E_Notify(PSTR("\r\nOSCOKIRQ failed to assert"), 0x80);
+                halt55();
+        }
+        E_Notify(PSTR("\r\nChecking USB device communication.\r\n"), 0x80);
 }
 
+void loop() {
+        delay(200);
+        Usb.Task();
+        usbstate = Usb.getUsbTaskState();
+        if (usbstate != laststate) {
+                laststate = usbstate;
+                /**/
+                switch (usbstate) {
+                        case( USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE):
+                                E_Notify(PSTR("\r\nWaiting for device..."), 0x80);
+                                break;
+                        case( USB_ATTACHED_SUBSTATE_RESET_DEVICE):
+                                E_Notify(PSTR("\r\nDevice connected. Resetting..."), 0x80);
+                                break;
+                        case( USB_ATTACHED_SUBSTATE_WAIT_SOF):
+                                E_Notify(PSTR("\r\nReset complete. Waiting for the first SOF..."), 0x80);
+                                break;
+                        case( USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE):
+                                E_Notify(PSTR("\r\nSOF generation started. Enumerating device..."), 0x80);
+                                break;
+                        case( USB_STATE_ADDRESSING):
+                                E_Notify(PSTR("\r\nSetting device address..."), 0x80);
+                                break;
+                        case( USB_STATE_RUNNING):
+                                E_Notify(PSTR("\r\nGetting device descriptor"), 0x80);
+                                rcode = Usb.getDevDescr(1, 0, sizeof (USB_DEVICE_DESCRIPTOR), (uint8_t*) & buf);
 
-void loop()
-{
-  delay( 200 );
-  Usb.Task();
-  usbstate = Usb.getUsbTaskState();
-  if(usbstate != laststate) {
-          laststate=usbstate;
-  /**/  
-  switch( usbstate ) {
-    case( USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE ):
-      E_Notify(PSTR("\r\nWaiting for device..."),0x80);
-      break;  
-    case( USB_ATTACHED_SUBSTATE_RESET_DEVICE ):
-      E_Notify(PSTR("\r\nDevice connected. Resetting..."),0x80);
-      break;
-    case( USB_ATTACHED_SUBSTATE_WAIT_SOF ):
-      E_Notify(PSTR("\r\nReset complete. Waiting for the first SOF..."),0x80);
-      break;
-    case( USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE ):
-      E_Notify(PSTR("\r\nSOF generation started. Enumerating device..."),0x80);
-      break;
-    case( USB_STATE_ADDRESSING ):
-      E_Notify(PSTR("\r\nSetting device address..."),0x80);      
-      break;
-    case( USB_STATE_RUNNING ):
-      E_Notify(PSTR("\r\nGetting device descriptor"),0x80);
-      rcode = Usb.getDevDescr( 1, 0, sizeof(USB_DEVICE_DESCRIPTOR), (uint8_t*)&buf );
-      
-        if( rcode ) {
-          E_Notify(PSTR("\r\nError reading device descriptor. Error code "),0x80);
-          print_hex( rcode, 8 );
+                                if (rcode) {
+                                        E_Notify(PSTR("\r\nError reading device descriptor. Error code "), 0x80);
+                                        print_hex(rcode, 8);
+                                } else {
+                                        /**/
+                                        E_Notify(PSTR("\r\nDescriptor Length:\t"), 0x80);
+                                        print_hex(buf.bLength, 8);
+                                        E_Notify(PSTR("\r\nDescriptor type:\t"), 0x80);
+                                        print_hex(buf.bDescriptorType, 8);
+                                        E_Notify(PSTR("\r\nUSB version:\t\t"), 0x80);
+                                        print_hex(buf.bcdUSB, 16);
+                                        E_Notify(PSTR("\r\nDevice class:\t\t"), 0x80);
+                                        print_hex(buf.bDeviceClass, 8);
+                                        E_Notify(PSTR("\r\nDevice Subclass:\t"), 0x80);
+                                        print_hex(buf.bDeviceSubClass, 8);
+                                        E_Notify(PSTR("\r\nDevice Protocol:\t"), 0x80);
+                                        print_hex(buf.bDeviceProtocol, 8);
+                                        E_Notify(PSTR("\r\nMax.packet size:\t"), 0x80);
+                                        print_hex(buf.bMaxPacketSize0, 8);
+                                        E_Notify(PSTR("\r\nVendor  ID:\t\t"), 0x80);
+                                        print_hex(buf.idVendor, 16);
+                                        E_Notify(PSTR("\r\nProduct ID:\t\t"), 0x80);
+                                        print_hex(buf.idProduct, 16);
+                                        E_Notify(PSTR("\r\nRevision ID:\t\t"), 0x80);
+                                        print_hex(buf.bcdDevice, 16);
+                                        E_Notify(PSTR("\r\nMfg.string index:\t"), 0x80);
+                                        print_hex(buf.iManufacturer, 8);
+                                        E_Notify(PSTR("\r\nProd.string index:\t"), 0x80);
+                                        print_hex(buf.iProduct, 8);
+                                        E_Notify(PSTR("\r\nSerial number index:\t"), 0x80);
+                                        print_hex(buf.iSerialNumber, 8);
+                                        E_Notify(PSTR("\r\nNumber of conf.:\t"), 0x80);
+                                        print_hex(buf.bNumConfigurations, 8);
+                                        /**/
+                                        E_Notify(PSTR("\r\n\nAll tests passed. Press RESET to restart test"), 0x80);
+                                        while (1);
+                                }
+                                break;
+                        case( USB_STATE_ERROR):
+                                E_Notify(PSTR("\r\nUSB state machine reached error state"), 0x80);
+                                break;
+
+                        default:
+                                break;
+                }//switch( usbstate...
         }
-        else {
-          /**/
-          E_Notify(PSTR("\r\nDescriptor Length:\t"),0x80);
-          print_hex( buf.bLength, 8 );
-          E_Notify(PSTR("\r\nDescriptor type:\t"),0x80);
-          print_hex( buf.bDescriptorType, 8 );
-          E_Notify(PSTR("\r\nUSB version:\t\t"),0x80);
-          print_hex( buf.bcdUSB, 16 );
-          E_Notify(PSTR("\r\nDevice class:\t\t"),0x80); 
-          print_hex( buf.bDeviceClass, 8 );
-          E_Notify(PSTR("\r\nDevice Subclass:\t"),0x80);
-          print_hex( buf.bDeviceSubClass, 8 );
-          E_Notify(PSTR("\r\nDevice Protocol:\t"),0x80);
-          print_hex( buf.bDeviceProtocol, 8 );
-          E_Notify(PSTR("\r\nMax.packet size:\t"),0x80);
-          print_hex( buf.bMaxPacketSize0, 8 );
-          E_Notify(PSTR("\r\nVendor  ID:\t\t"),0x80);
-          print_hex( buf.idVendor, 16 );
-          E_Notify(PSTR("\r\nProduct ID:\t\t"),0x80);
-          print_hex( buf.idProduct, 16 );
-          E_Notify(PSTR("\r\nRevision ID:\t\t"),0x80);
-          print_hex( buf.bcdDevice, 16 );
-          E_Notify(PSTR("\r\nMfg.string index:\t"),0x80);
-          print_hex( buf.iManufacturer, 8 );
-          E_Notify(PSTR("\r\nProd.string index:\t"),0x80);
-          print_hex( buf.iProduct, 8 );
-          E_Notify(PSTR("\r\nSerial number index:\t"),0x80);
-          print_hex( buf.iSerialNumber, 8 );
-          E_Notify(PSTR("\r\nNumber of conf.:\t"),0x80);
-          print_hex( buf.bNumConfigurations, 8 );
-          /**/
-          E_Notify(PSTR("\r\n\nAll tests passed. Press RESET to restart test"),0x80);
-          while(1);
-        }
-        break;
-    case( USB_STATE_ERROR ):
-      E_Notify(PSTR("\r\nUSB state machine reached error state"),0x80);
-      break;
-      
-    default:
-      break;
-    }//switch( usbstate...
-  }  
 }//loop()...
 
 /* constantly transmits 0x55 via SPI to aid probing */
-void halt55()
-{
+void halt55() {
 
-    E_Notify(PSTR("\r\nUnrecoverable error - test halted!!"),0x80);
-    E_Notify(PSTR("\r\n0x55 pattern is transmitted via SPI"),0x80);
-    E_Notify(PSTR("\r\nPress RESET to restart test"),0x80);
-    
-    while( 1 ) {
-      Usb.regWr( 0x55, 0x55 );
-    }
+        E_Notify(PSTR("\r\nUnrecoverable error - test halted!!"), 0x80);
+        E_Notify(PSTR("\r\n0x55 pattern is transmitted via SPI"), 0x80);
+        E_Notify(PSTR("\r\nPress RESET to restart test"), 0x80);
+
+        while (1) {
+                Usb.regWr(0x55, 0x55);
+        }
 }
+
 /* prints hex numbers with leading zeroes */
-void print_hex(int v, int num_places)
-{
-  int mask=0, n, num_nibbles, digit;
+void print_hex(int v, int num_places) {
+        int mask = 0, n, num_nibbles, digit;
 
-  for (n=1; n<=num_places; n++) {
-    mask = (mask << 1) | 0x0001;
-  }
-  v = v & mask; // truncate v to specified number of places
+        for (n = 1; n <= num_places; n++) {
+                mask = (mask << 1) | 0x0001;
+        }
+        v = v & mask; // truncate v to specified number of places
 
-  num_nibbles = num_places / 4;
-  if ((num_places % 4) != 0) {
-    ++num_nibbles;
-  }
-  do {
-    digit = ((v >> (num_nibbles-1) * 4)) & 0x0f;
-    Serial.print(digit, HEX);
-  } while(--num_nibbles);
+        num_nibbles = num_places / 4;
+        if ((num_places % 4) != 0) {
+                ++num_nibbles;
+        }
+        do {
+                digit = ((v >> (num_nibbles - 1) * 4)) & 0x0f;
+                Serial.print(digit, HEX);
+        } while (--num_nibbles);
 }
+
 /* prints "Press any key" and returns when key is pressed */
-void press_any_key()
-{
-  E_Notify(PSTR("\r\nPress any key to continue..."),0x80);
-  while( Serial.available() <= 0 ); //wait for input
-  Serial.read();                    //empty input buffer    
-  return;
+void press_any_key() {
+        E_Notify(PSTR("\r\nPress any key to continue..."), 0x80);
+        while (Serial.available() <= 0); //wait for input
+        Serial.read(); //empty input buffer
+        return;
 }