[media] cx231xx-417: use one querycap for all device nodes

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h
index c17889d..efc0d1c 100644
--- a/drivers/media/usb/cx231xx/cx231xx.h
+++ b/drivers/media/usb/cx231xx/cx231xx.h
@@ -934,6 +934,8 @@
 void cx231xx_unregister_extension(struct cx231xx_ops *dev);
 void cx231xx_init_extension(struct cx231xx *dev);
 void cx231xx_close_extension(struct cx231xx *dev);
+int cx231xx_querycap(struct file *file, void *priv,
+			   struct v4l2_capability *cap);
 
 /* Provided by cx231xx-cards.c */
 extern void cx231xx_pre_card_setup(struct cx231xx *dev);