diff mbox

[1/2] media: v4l: V4L2_MBUS_FRAME_DESC_FL_BLOB is about 1D DMA

Message ID 1396617885-5474-2-git-send-email-sakari.ailus@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sakari Ailus April 4, 2014, 1:24 p.m. UTC 
V4L2_MBUS_FRAME_DESC_FL_BLOB intends to say the receiver must use 1D DMA to
receive the image, as the format does not have line offsets. This typically
includes all compressed formats.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
 include/media/v4l2-subdev.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 28f4d8c..00f5d2b 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -234,15 +234,18 @@  struct v4l2_subdev_audio_ops {
 
 /* Indicates the @length field specifies maximum data length. */
 #define V4L2_MBUS_FRAME_DESC_FL_LEN_MAX		(1U << 0)
-/* Indicates user defined data format, i.e. non standard frame format. */
+/*
+ * Indicates that the format does not have line offsets, i.e. the
+ * receiver should use 1D DMA.
+ */
 #define V4L2_MBUS_FRAME_DESC_FL_BLOB		(1U << 1)
 
 /**
  * struct v4l2_mbus_frame_desc_entry - media bus frame description structure
  * @flags: V4L2_MBUS_FRAME_DESC_FL_* flags
  * @pixelcode: media bus pixel code, valid if FRAME_DESC_FL_BLOB is not set
- * @length: number of octets per frame, valid for compressed or unspecified
- *          formats
+ * @length: number of octets per frame, valid if V4L2_MBUS_FRAME_DESC_FL_BLOB
+ *	    is set
  */
 struct v4l2_mbus_frame_desc_entry {
 	u16 flags;