[media] bttv: convert to the control framework

Note that the private chroma agc control has been replaced with the standard
CHROMA_AGC control.
Also fixes a mute/automute problem where closing the file handle would force
mute on. That's not what you want since that would make the mute state out of
sync with the mute control. Instead check against the user count.

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

1 files changed, 5 insertions, 0 deletions

diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index dcd63745e83a..1d00ca9f0ba3 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -146,6 +146,11 @@ enum v4l2_colorfx {
  * of controls. We reserve 16 controls for this driver. */
 #define V4L2_CID_USER_MEYE_BASE                 (V4L2_CID_USER_BASE + 0x1000)
 
+/* The base for the bttv driver controls.
+ * We reserve 32 controls for this driver. */
+#define V4L2_CID_USER_BTTV_BASE                 (V4L2_CID_USER_BASE + 0x1010)
+
+
 /* MPEG-class control IDs */
 
 #define V4L2_CID_MPEG_BASE                      (V4L2_CTRL_CLASS_MPEG | 0x900)