firewire: Add card index field to get_info cdev ioctl struct.

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 c6ea6f3..0cc4b082 100644
--- a/drivers/firewire/fw-device-cdev.h
+++ b/drivers/firewire/fw-device-cdev.h
@@ -140,6 +140,9 @@
 	/* If non-zero, a fw_cdev_event_bus_reset struct will be
 	 * copied here with the current state of the bus. */
 	__u64 bus_reset;
+
+	/* The index of the card this devices belongs to. */
+	__u32 card;
 };
 
 struct fw_cdev_send_request {