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authorSakari Ailus <sakari.ailus@linux.intel.com>2013-12-18 08:40:28 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-05-13 13:43:54 -0300
commit174d6a39b07f51212c23a8e30a0440598d18392c (patch)
treea5e68dc44fbf23993cd2266252251561f51e058f
parentb2a06aecb24329e16edc3108b8192d65ace8da75 (diff)
[media] v4l: V4L2_MBUS_FRAME_DESC_FL_BLOB is about 1D DMA
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> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
-rw-r--r--include/media/v4l2-subdev.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index ee0ae769ca94..7653194e821a 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;

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