diff --git a/fhem/FHEM/55_PIFACE.pm b/fhem/FHEM/55_PIFACE.pm
index fd7ec066e..4403269c3 100644
--- a/fhem/FHEM/55_PIFACE.pm
+++ b/fhem/FHEM/55_PIFACE.pm
@@ -397,8 +397,8 @@ PIFACE_Watchdog($) {
1;
=pod
-=item summary Raspberry Pi PiFace Digital Interface
-=item summary_DE Raspberry Pi PiFace Digital Interface
+=item summary Raspberry PiFace Digital Controler
+=item summary_DE Raspberry PiFace Digital Controler
=begin html
@@ -416,17 +416,21 @@ PIFACE_Watchdog($) {
PIFACE is tested with the Raspbian OS.
Preparatory Work
- The use of PIFACE module requires some preparatory work.
+ The use of PIFACE module requires some preparatory work. The module needs the Wiring Pi tool.
git clone git://git.drogon.net/wiringPi
cd wiringPi
./build
sudo apt-get install wiringpi
sudo raspi-config
, select 8 Advanced Options
+ Start sudo raspi-config
, select Advanced Options
and set the A5 SPI
option to "Yes".