I contributed to port a new microcontroller, which includes writing device (peripheral) drivers. It was pretty much about their coding standards. I had that ex

I contributed to port a new microcontroller, which includes writing device (peripheral) drivers. It was pretty much about their coding standards. I had that experience because I was contributing for mainline branch. They think avoiding abstracted manufacturer peripheral libraries (like STM32 HAL) is the best way to keep the binary small. It is pretty much appose to what Zephyr OS is doing. I think peripheral libraries are adopting BSD license these days so the license shouldn't be an issue these days.