firewire: Acummulate received iso headers and send them back to user space.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/firewire/fw-device-cdev.h b/drivers/firewire/fw-device-cdev.h
index 257dc87..e32b39d 100644
--- a/drivers/firewire/fw-device-cdev.h
+++ b/drivers/firewire/fw-device-cdev.h
@@ -89,6 +89,8 @@
 	__u32 type;
 	__u32 cycle;
 	__u64 closure;
+	__u32 header_length;	/* Length in bytes of following headers. */
+	__u32 header[0];
 };
 
 #define FW_CDEV_IOC_GET_CONFIG_ROM	_IOR('#', 0x00, struct fw_cdev_get_config_rom)