RIoTBoard and ENOTTY error

[fademike]

Hello!

I have RIoTBoard (with i.mx6 solo), And I want to get a simple video stream with HSYNC, VSYNC, DATA[8], CLK...

In the default configuration, I can read the data from /dev/video0

But after update: u-boot, linux(5.4 with: imx_v6_v7_defconfig, imx6dl-riotboard.dts), ubuntu(18.04), and after reading the device /dev/video0, i get error: "Invalid argument".

strace xxd /dev/video0:
ioctl(3, TCGETS, 0xbeb8ba4c) = -1 ENOTTY (Inappropriate ioctl for device)
read(3, 0xe14170, 4096) = -1 EINVAL (Invalid argument)

Maybe I need to change the file imx6dl-riotboard.dts?
How do I get a video stream? Where to read about it?

Thanks in advance.

[jimmychan]

Basically, you can try to porting this board (modify the dts file) base on the schematic if you have the schematic of this board.

For your information:

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

There is a linux porting guide. You may read it for reference.