[media] v4l2-ctrls: add a filter function to v4l2_ctrl_add_handler

With a filter function you can control more precisely which controls
are added. This is useful in particular for radio device nodes for
combined TV/Radio cards where you want to show just the radio-specific
controls and not controls like brightness.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index 843ffd9e533b..def363fb71c0 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -1236,7 +1236,7 @@ static int cx8802_blackbird_probe(struct cx8802_driver *drv)
         err = cx2341x_handler_init(&dev->cxhdl, 36);
         if (err)
                 goto fail_core;
-        v4l2_ctrl_add_handler(&dev->cxhdl.hdl, &core->video_hdl);
+        v4l2_ctrl_add_handler(&dev->cxhdl.hdl, &core->video_hdl, NULL);
 
         /* blackbird stuff */
         printk("%s/2: cx23416 based mpeg encoder (blackbird reference design)\n",
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index f6fcc7e763ab..a146d50d7795 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1795,7 +1795,7 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
                 if (vc->id == V4L2_CID_CHROMA_AGC)
                         core->chroma_agc = vc;
         }
-        v4l2_ctrl_add_handler(&core->video_hdl, &core->audio_hdl);
+        v4l2_ctrl_add_handler(&core->video_hdl, &core->audio_hdl, NULL);
 
         /* load and configure helper modules */