diff -N -u fsam7400-0.5.1/cfgcheck.sh fsam7400-0.5.1-patched/cfgcheck.sh
--- fsam7400-0.5.1/cfgcheck.sh	1970-01-01 01:00:00.000000000 +0100
+++ fsam7400-0.5.1-patched/cfgcheck.sh	2007-12-11 17:43:06.000000000 +0100
@@ -0,0 +1,7 @@
+#!/bin/bash
+## this script returns 0 only if CONFIG_CHECK_SIGNATURE is active in the current kernel
+CHECK_SIG=$(gunzip < /proc/config.gz | grep 'CONFIG_CHECK_SIGNATURE=y')
+if [[ "$CHECK_SIG" == "" ]]; then
+	echo "Error: your kernel is not compiled with CONFIG_CHECK_SIGNATURE=y"
+	exit -1
+fi
diff -N -u fsam7400-0.5.1/fsam7400.c fsam7400-0.5.1-patched/fsam7400.c
--- fsam7400-0.5.1/fsam7400.c	2006-09-24 15:11:08.000000000 +0200
+++ fsam7400-0.5.1-patched/fsam7400.c	2007-12-11 10:06:30.000000000 +0100
@@ -28,7 +28,8 @@
 
 *******************************************************************************/
 
-#include <linux/config.h>
+#include <linux/autoconf.h>
+#include <linux/io.h>
 #ifdef CONFIG_X86
 #include <linux/version.h>
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
diff -N -u fsam7400-0.5.1/Makefile fsam7400-0.5.1-patched/Makefile
--- fsam7400-0.5.1/Makefile	2006-09-22 14:39:30.000000000 +0200
+++ fsam7400-0.5.1-patched/Makefile	2007-12-11 17:43:47.000000000 +0100
@@ -26,10 +26,10 @@
 	@echo -e clean\\t- removes all binaries and temporary files
 
 fsam7400.ko: $(SOURCE) 
-	$(MAKE) -C $(KERNELSRC) SUBDIRS=$(PWD) modules
+	./cfgcheck.sh && $(MAKE) -C $(KERNELSRC) SUBDIRS=$(PWD) modules
 
 fsam7400.o: $(SOURCE)
-	$(CC) $(INCLUDE) $(CFLAGS) -DDEBUG -DMODVERSIONS -DMODULE -D__KERNEL__ -o $(TARGET) $(SOURCE)
+	./cfgcheck.sh && $(CC) $(INCLUDE) $(CFLAGS) -DDEBUG -DMODVERSIONS -DMODULE -D__KERNEL__ -o $(TARGET) $(SOURCE)
 
 clean:
 	@echo -n "sweeping directory... "