Minix UH-9 Auto Power On

[zantrax]

The problem (Armbian on U9-H requires physical button after power loss)

The discovery process (MCU at I2C bus 0, address 0x15, register 0x11)

The fix: i2cset -y 0 0x15 0x11 0x00

The systemd service for persistence

That 0x01 = button required, 0x00 = auto power on

Note it likely applies to the Minix NEO U1 as well since it uses the same MCU