Comment by smashed

Yup. I remember my dismay when I started working with Linux on arm boards and realizing the absolute massive gap between the hardware vendor claims of "full linux support" and the reality.

Sometimes the SDK is a zip of the developer workspace in a pseudo working state with no clear records of all that's been patched.

Vendors providing binary only kernel and system images containing god knows what is not uncommon either.

I'm convinced now that arm hardware vendors are simply incapable of even understanding what proper software support is. I'm sure some of their devs do their best but management does not care. By the time the chip ships, efforts move to making the next thing so they never properly finish the software side.