irq_handler_t has changed type in 2.6.19 due to commit
7d12e780e003f93433d49ce78cfedf4b4c52adc5 by David Howells,
for details see git diff at http://tinyurl.com/2xpdy7

As the third argument was never used by the drivers, I simply wrapped every
occurrence of it in a condition for kernel version prior to 2.6.19.
2007-01-13 Martin von Gagern <Martin.vGagern@gmx.net>

diff -ur usr.orig/src/kernel-modules/fritzcapi/fritz.classic/src/driver.c usr/src/kernel-modules/fritzcapi/fritz.classic/src/driver.c
--- usr.orig/src/kernel-modules/fritzcapi/fritz.classic/src/driver.c	2007-01-22 23:36:39.000000000 +0100
+++ usr/src/kernel-modules/fritzcapi/fritz.classic/src/driver.c	2007-01-23 00:04:30.000000000 +0100
@@ -107,7 +107,11 @@
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
 static void scheduler (unsigned long data);
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs);
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				);
 
 static DECLARE_TASKLET_DISABLED (scheduler_tasklet, scheduler, 0);
 
@@ -805,11 +809,17 @@
 
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs) {
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				) {
 	int	res	= IRQ_NONE;
 	
 	UNUSED_ARG (irq);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
 	UNUSED_ARG (regs);
+#endif
 	if (args != NULL) {
 		assert (capi_lib->cm_handle_events != NULL);
 		if (atomic_read (&scheduler_id) == smp_processor_id ()) {
diff -ur usr.orig/src/kernel-modules/fritzcapi/fritz.pci/src/driver.c usr/src/kernel-modules/fritzcapi/fritz.pci/src/driver.c
--- usr.orig/src/kernel-modules/fritzcapi/fritz.pci/src/driver.c	2007-01-22 23:36:39.000000000 +0100
+++ usr/src/kernel-modules/fritzcapi/fritz.pci/src/driver.c	2007-01-23 00:07:18.000000000 +0100
@@ -107,7 +107,11 @@
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
 static void scheduler (unsigned long data);
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs);
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				);
 
 static DECLARE_TASKLET_DISABLED (scheduler_tasklet, scheduler, 0);
 
@@ -836,11 +840,17 @@
 
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs) {
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				) {
 	int	res	= IRQ_NONE;
 	
 	UNUSED_ARG (irq);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
 	UNUSED_ARG (regs);
+#endif
 	if (args != NULL) {
 		assert (capi_lib->cm_handle_events != NULL);
 		if (atomic_read (&scheduler_id) == smp_processor_id ()) {
diff -ur usr.orig/src/kernel-modules/fritzcapi/fritz.pcmcia/src/driver.c usr/src/kernel-modules/fritzcapi/fritz.pcmcia/src/driver.c
--- usr.orig/src/kernel-modules/fritzcapi/fritz.pcmcia/src/driver.c	2007-01-22 23:36:39.000000000 +0100
+++ usr/src/kernel-modules/fritzcapi/fritz.pcmcia/src/driver.c	2007-01-23 00:07:18.000000000 +0100
@@ -107,7 +107,11 @@
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
 static void scheduler (unsigned long data);
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs);
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				);
 
 static DECLARE_TASKLET_DISABLED (scheduler_tasklet, scheduler, 0);
 
@@ -836,11 +840,17 @@
 
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs) {
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				) {
 	int	res	= IRQ_NONE;
 	
 	UNUSED_ARG (irq);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
 	UNUSED_ARG (regs);
+#endif
 	if (args != NULL) {
 		assert (capi_lib->cm_handle_events != NULL);
 		if (atomic_read (&scheduler_id) == smp_processor_id ()) {
diff -ur usr.orig/src/kernel-modules/fritzcapi/fritz.pnp/src/driver.c usr/src/kernel-modules/fritzcapi/fritz.pnp/src/driver.c
--- usr.orig/src/kernel-modules/fritzcapi/fritz.pnp/src/driver.c	2007-01-22 23:36:39.000000000 +0100
+++ usr/src/kernel-modules/fritzcapi/fritz.pnp/src/driver.c	2007-01-23 00:04:52.000000000 +0100
@@ -107,7 +107,11 @@
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
 static void scheduler (unsigned long data);
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs);
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				);
 
 static DECLARE_TASKLET_DISABLED (scheduler_tasklet, scheduler, 0);
 
@@ -805,11 +809,17 @@
 
 /*---------------------------------------------------------------------------*\
 \*---------------------------------------------------------------------------*/
-static irqreturn_t irq_handler (int irq, void * args, struct pt_regs * regs) {
+static irqreturn_t irq_handler (int irq, void * args
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+				, struct pt_regs * regs
+#endif
+				) {
 	int	res	= IRQ_NONE;
 	
 	UNUSED_ARG (irq);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
 	UNUSED_ARG (regs);
+#endif
 	if (args != NULL) {
 		assert (capi_lib->cm_handle_events != NULL);
 		if (atomic_read (&scheduler_id) == smp_processor_id ()) {