Genio 520 - Can't Capture from RAW Camera using MTK's proprietary imgsensor architecture (mtk-camisp-mw)

Yocto
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1

Hi MTK,

I am bringing up and porting the driver for a new raw image sensor using MTK’s proprietary imgsensor architecture on Yocto v26.0, and it is now able to preview and record, but it returns a green image to me when capturing from the camera.

Does MTK have any idea about why it fails to capture from the camera?

The command used to capture from the camera is:

v4l2-ctl --device /dev/video8 \

       -v width=1920,height=1080,pixelformat=JPEG \\

       --stream-mmap --stream-count=1 --stream-to "camera-0-1920x1080.jpg"

The returned image looks like this (1920x1080):

camera-0-1920x1080
camera-0-1920x10801920×1080 12.2 KB

And the listed video devices on the running system are:

# v4l2-ctl --list-devices

mtk-jpeg-enc (platform:17030000.jpeg-encoder):

       /dev/video0

mtk-jpeg-dec (platform:17040000.jpeg-decoder):

       /dev/video1

MediaTek MDP3 (platform:1f003000.dma-controlle):

       /dev/video4

       /dev/media0

platform:mt8189 (platform:mt8189):

       /dev/video2

       /dev/video3

mtk-v4l2-adaptor-cam0 (platform:mtk-v4l2-adaptor-cam0):

       /dev/video5

       /dev/video6

       /dev/video7

       /dev/video8

       /dev/media1
3

Hi @David_Hsu ,

Thanks for reporting the issue. We are currently investigating the issue.

Best Regards,
Andy Hsieh