Clarification for V4L2_FIELD_SEQ_TB in planar modes

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Hi,
I'm writing a driver for a device that appears to support only planar video
modes. For video out I would like to use the auto-repeat functionality of
its DMA engine. In interlaced modes this requires a plane of the second
field to directly follow the corresponding plane of the first field in memory.

I could not find any driver supporting SEQ_TB/SEQ_BT in planar modes, so my
question is:

Does V4L2_FIELD_SEQ_TB in planar YCbCr modes correspond to
  Y1 Y2 Cb1 Cb2 Cr1 Cr2
or
  Y1 Cb1 Cr1 Y2 Cb2 Cr2
?

  Daniel


-- 
Dipl.-Math. Daniel Glöckner, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax -11, Bahnhofsallee 1b, 37081 Göttingen, Germany
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