diff --git a/VERSION b/VERSION
index 80bf4d0..21d5b2e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.72
+2.73
diff --git a/debian-template/wiringPi/DEBIAN/control b/debian-template/wiringPi/DEBIAN/control
index 40262ba..4797516 100644
--- a/debian-template/wiringPi/DEBIAN/control
+++ b/debian-template/wiringPi/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: wiringpi
-Version: 2.72
+Version: 2.73
 Section: libraries
 Priority: optional
 Architecture: armhf
diff --git a/gpio/readall.c b/gpio/readall.c
index bff8566..6da28b7 100644
--- a/gpio/readall.c
+++ b/gpio/readall.c
@@ -75,11 +75,23 @@ static void doReadallExternal (void)
  *********************************************************************************
  */
 
-static char *alts [] =
+static const char unknown_alt[] = " - ";
+static const char *alts [] =
 {
-  "IN", "OUT", "ALT5", "ALT4", "ALT0", "ALT1", "ALT2", "ALT3"
+  "IN", "OUT", "ALT5", "ALT4", "ALT0", "ALT1", "ALT2", "ALT3", "ALT6", "ALT7", "ALT8", "ALT9"
 } ;
 
+
+static const char* GetAltString(int alt) {
+
+  if (alt>=0 && alt<=11) {
+    return alts[alt];
+  }
+
+  return unknown_alt;
+}
+
+
 static int physToWpi [64] =
 {
   -1,           // 0
@@ -177,7 +189,7 @@ static void readallPhys (int physPin)
     else
       pin = physToWpi [physPin] ;
 
-    printf (" | %4s", alts [getAlt (pin)]) ;
+    printf (" | %4s", GetAltString(getAlt (pin))) ;
     printf (" | %d", digitalRead (pin)) ;
   }
 
@@ -201,7 +213,7 @@ static void readallPhys (int physPin)
       pin = physToWpi [physPin] ;
 
     printf (" | %d", digitalRead (pin)) ;
-    printf (" | %-4s", alts [getAlt (pin)]) ;
+    printf (" | %-4s", GetAltString(getAlt (pin))) ;
   }
 
   printf (" | %-5s", physNames [physPin]) ;
@@ -233,11 +245,11 @@ static void allReadall (void)
   for (pin = 0 ; pin < 27 ; ++pin)
   {
     printf ("| %3d ", pin) ;
-    printf ("| %-4s ", alts [getAlt (pin)]) ;
+    printf ("| %-4s ", GetAltString(getAlt (pin))) ;
     printf ("| %s  ", digitalRead (pin) == HIGH ? "High" : "Low ") ;
     printf ("|      ") ;
     printf ("| %3d ", pin + 27) ;
-    printf ("| %-4s ", alts [getAlt (pin + 27)]) ;
+    printf ("| %-4s ", GetAltString(getAlt (pin + 27))) ;
     printf ("| %s  ", digitalRead (pin + 27) == HIGH ? "High" : "Low ") ;
     printf ("|\n") ;
   }
@@ -404,5 +416,5 @@ void doQmode (int argc, char *argv [])
   }
 
   pin = atoi (argv [2]) ;
-  printf ("%s\n", alts [getAlt (pin)]) ;
+  printf ("%s\n", GetAltString(getAlt (pin))) ;
 }
diff --git a/newVersion b/newVersion
old mode 100644
new mode 100755
diff --git a/version.h b/version.h
index d2d73a4..2dec082 100644
--- a/version.h
+++ b/version.h
@@ -1,3 +1,3 @@
-#define VERSION "2.72"
+#define VERSION "2.73"
 #define VERSION_MAJOR 2
-#define VERSION_MINOR 72
+#define VERSION_MINOR 73
diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index 6b99cc4..b6a613b 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -135,7 +135,7 @@ const unsigned int RP1_RIO_OE  = (0x0004/4);
 const unsigned int RP1_RIO_IN  = (0x0008/4);
 
 //RP1 chip (@Pi5) RIO offset for set/clear value
-const unsigned int RP1_SET_OFFSET = (0x2000/4):
+const unsigned int RP1_SET_OFFSET = (0x2000/4);
 const unsigned int RP1_CLR_OFFSET = (0x3000/4);
 
 //RP1 chip (@Pi5) PDE/PDU pull-up/-down enable
@@ -167,7 +167,7 @@ const unsigned int RP1_PADS0_Addr    = 0x400f0000;
 //	due to the Pi v2, v3, etc. and the new /dev/gpiomem interface
 
 const char* gpiomem_global    = "/dev/mem";
-const char* gpiomem_BCM       = "/dev/gpiomem"
+const char* gpiomem_BCM       = "/dev/gpiomem";
 const char* gpiomem_RP1       = "/dev/gpiomem0";
 const int   gpiomem_RP1_Size  = 0x00030000;
 
@@ -562,11 +562,12 @@ int GetMaxPin() {
 
 #define RETURN_ON_MODEL5 if (PI_MODEL_5 == RaspberryPiModel) { if (wiringPiDebug) printf("Function not supported on Pi5\n");  return; } 
  
-void FailOnModel5() {
+int FailOnModel5() {
   if (PI_MODEL_5 == RaspberryPiModel) {
     return wiringPiFailure (WPI_ALMOST, "Function not supported on Raspberry Pi 5.\n"
   "  Unable to continue. Keep an eye of new versions at https://github.com/GrazerComputerClub/WiringPi\n") ;
   }
+  return 0;
 }
 
 // gpioToGPFSEL:
@@ -1287,7 +1288,35 @@ int getAlt (int pin)
     return 0 ;
 
   if (PI_MODEL_5 == RaspberryPiModel) {
-    alt = (gpio[2*pin+1] & RP1_FSEL_NONE_HW); //0-4  function, 5-11 debounce time
+    alt = (gpio[2*pin+1] & RP1_FSEL_NONE_HW); //0-4  function
+
+  /* BCM definiton
+  000 = GPIO Pin 9 is an input
+  001 = GPIO Pin 9 is an output
+  100 = GPIO Pin 9 takes alternate function 0
+  101 = GPIO Pin 9 takes alternate function 1
+  110 = GPIO Pin 9 takes alternate function 2
+  111 = GPIO Pin 9 takes alternate function 3
+  011 = GPIO Pin 9 takes alternate function 4
+  010 = GPIO Pin 9 takes alternate function 5
+  */
+    switch(alt) {
+      case 0: return 4;
+      case 1: return 5;
+      case 2: return 6;
+      case 3: return 7;
+      case 4: return 3;
+      case RP1_FSEL_GPIO: {
+          unsigned int outputmask = gpio[2*pin] & 0x3000;   //Bit13-OETOPAD + Bit12-OEFROMPERI
+          return (outputmask==0x3000) ? 1 : 0; //1=OUT 0=IN
+        }
+      case 6: return 8;
+      case 7: return 9;
+      case 8: return 10;
+      case 9: return 11;
+      default:return alt;
+    }
+
   } else {
     fSel    = gpioToGPFSEL [pin] ;
     shift   = gpioToShift  [pin] ;
@@ -1678,7 +1707,6 @@ void pullUpDnControl (int pin, int pud)
     else if (wiringPiMode != WPI_MODE_GPIO)
       return ;
 
-    unsigned int pull;
     if (PI_MODEL_5 == RaspberryPiModel) {
       unsigned int pullbits = pads[1+pin] & RP1_INV_PUD_MASK; // remove bits
       switch (pud){
@@ -1830,7 +1858,7 @@ void digitalWrite (int pin, int value)
     else if (wiringPiMode != WPI_MODE_GPIO)
       return ;
     if (PI_MODEL_5 == RaspberryPiModel) {
-      if (value == LOW)
+      if (value == LOW) {
         //printf("Set pin %d >>0x%08x<< to low\n", pin, 1<<pin);
         rio[RP1_RIO_OUT + RP1_CLR_OFFSET] = 1<<pin;
       } else {