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Diffstat (limited to 'Documentation/media/uapi/v4l')
| -rw-r--r-- | Documentation/media/uapi/v4l/subdev-formats.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/subdev-formats.rst b/Documentation/media/uapi/v4l/subdev-formats.rst index ab1a48a5ae80..7b8e17c7b68b 100644 --- a/Documentation/media/uapi/v4l/subdev-formats.rst +++ b/Documentation/media/uapi/v4l/subdev-formats.rst @@ -85,6 +85,14 @@ formats in memory (a raw Bayer image won't be magically converted to JPEG just by storing it to memory), there is no one-to-one correspondence between them. +The media bus pixel codes document parallel formats. Should the pixel data be +transported over a serial bus, the media bus pixel code that describes a +parallel format that transfers a sample on a single clock cycle is used. For +instance, both MEDIA_BUS_FMT_BGR888_1X24 and MEDIA_BUS_FMT_BGR888_3X8 are used +on parallel busses for transferring an 8 bits per sample BGR data, whereas on +serial busses the data in this format is only referred to using +MEDIA_BUS_FMT_BGR888_1X24. This is because there is effectively only a single +way to transport that format on the serial busses. Packed RGB Formats ^^^^^^^^^^^^^^^^^^ |