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xiayanqian
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Registered: ‎08-26-2020

How to change the test pattern in TPG?

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Hello everyone, I refer to the TPG VL42 driver wiki:

https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841638/Xilinx+V4L2+TPG+driver.

It shows that the TPG can generate some other patterns:

 

 

yavta -l /dev/v4l-subdev0

--- Image Processing Controls (class 0x009f0001) ---
control 0x009f0903 `Test Pattern' min 0 max 16 step 1 default 9 current 9.
  1: Horizontal Ramp
  2: Vertical Ramp
  3: Temporal Ramp
  4: Solid Red
  5: Solid Green
  6: Solid Blue
  7: Solid Black
  8: Solid White
  9: Color Bars (*)
  10: Zone Plate

 

 
I have managed to display the default Colar Bars, then how can I switch to other patterns? 
Thanks!
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