If you’re pairing a tiny Linux computer to a few peripherals — perhaps you’re building a reasonably custom Pi-powered device — it’s rightfully tempting to use something like an STM32 for all your low-level tasks, from power management to reading keyboard events.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/06/26/coupling-stm32-and-linux-consider-hid-over-i2c/