add itc type to hdmirx

[benhoff]

This backports the ability to check the ITC type.

[amazingfate]

I just tested your patch on rock5b and 6.11 mainline kernel, obs is not working. After removing your patch obs is fine.
I guess this would also break vendor kernel.

[benhoff]

I just tested your patch on rock5b and 6.11 mainline kernel, obs is not working. After removing your patch obs is fine. I guess this would also break vendor kernel.

@amazingfate Thanks for testing!

It's running on the vendor kernel for me, but with my own custom v4l2 application, I hadn't tested obs as I'm not running a desktop.

Can you help me understand the environment you are testing it in so I can recreate?

I'm surprised you can run drivers from 6.1 on 6.11, but I don't do a lot of kennel development so that's why I'm asking.

I'll spin up an environment and get to the bottom of obs here in a few days

[amazingfate]

I was testing mainline kernel with your commit yesterday.
I get error: v4l2-input: /dev/video0: select timed out when adding v4l2 device to obs. I'm running armbian noble.
Debian has broken obs because they add this patch: https://salsa.debian.org/multimedia-team/obs-studio/-/commit/4a353a071febf315746a9d184bc6506e31421882, I'm testing obs without this patch.
I tested 6.1 kernel with your patch today and find that there is still select timed out issue without your patch, so your patch should be not related. I will check mainline kernel tomorrow.

[amazingfate]

This commit is fine, let's merge it.