diff --git a/libraries/MCP23008/README.md b/libraries/MCP23008/README.md
index eac9bc19..2e06c716 100644
--- a/libraries/MCP23008/README.md
+++ b/libraries/MCP23008/README.md
@@ -55,7 +55,9 @@ Can be overruled with Wire0..WireN.
 
 ### Single pin interface
 
-- **bool pinMode(uint8_t pin, uint8_t mode)** pin = 0..7, mode = INPUT, OUTPUT. Returns true if successful.
+- **bool pinMode(uint8_t pin, uint8_t mode)** pin = 0..7, mode = INPUT, OUTPUT.
+0xFF is all pins are input, 0x1F are 5 inputs and 3 outputs.
+Returns true if successful.
 - **bool digitalWrite(uint8_t pin, uint8_t value)** pin = 0..7, value = LOW(0) HIGH (!0). Returns true if successful.
 - **uint8_t digitalRead(uint8_t pin)** pin = 0..7, returns LOW or HIGH, might set the lastError();
 - **bool setPolarity(uint8_t pin, bool reversed)** pin = 0..7, set reversed flag. Returns true if successful.
diff --git a/libraries/MCP23008/examples/MCP23008_digitalRead/MCP23008_digitalRead.ino b/libraries/MCP23008/examples/MCP23008_digitalRead/MCP23008_digitalRead.ino
index fb4e8288..b4e3137f 100644
--- a/libraries/MCP23008/examples/MCP23008_digitalRead/MCP23008_digitalRead.ino
+++ b/libraries/MCP23008/examples/MCP23008_digitalRead/MCP23008_digitalRead.ino
@@ -20,7 +20,7 @@ void setup()
   Wire.begin();
   MCP.begin();
 
-  MCP.pinMode8(0x00);
+  MCP.pinMode8(0xFF);
 
   Serial.println("TEST digitalRead(pin)");
   for (int pin = 0; pin < 8; pin++)
@@ -37,4 +37,4 @@ void loop()
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --