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-rw-r--r--Documentation/ioctl/ioctl-number.txt1
-rw-r--r--include/media/bt819.h5
2 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 7edf95014e85..d6a63c7b4478 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -193,7 +193,6 @@ Code Seq#(hex) Include File Comments
<http://lrcwww.epfl.ch/>
'b' 00-FF conflict! bit3 vme host bridge
<mailto:natalia@nikhefk.nikhef.nl>
-'b' 00-0F media/bt819.h conflict!
'c' all linux/cm4000_cs.h conflict!
'c' 00-7F linux/comstats.h conflict!
'c' 00-7F linux/coda.h conflict!
diff --git a/include/media/bt819.h b/include/media/bt819.h
index 38f666bde77a..8025f4bc2bb6 100644
--- a/include/media/bt819.h
+++ b/include/media/bt819.h
@@ -26,7 +26,10 @@
/* v4l2_device notifications. */
/* Needed to reset the FIFO buffer when changing the input
- or the video standard. */
+ or the video standard.
+
+ Note: these ioctls that internal to the kernel and are never called
+ from userspace. */
#define BT819_FIFO_RESET_LOW _IO('b', 0)
#define BT819_FIFO_RESET_HIGH _IO('b', 1)

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