RPi4 EEPROM updater from https://github.com/raspberrypi/rpi-eeprom.
This is EXPERIMENTAL package. Read carefully before using:
- rpi-eeprom-update -h,
- https://www.raspberrypi.org/documentation/hardware/raspberrypi/booteeprom.md.
Typical usage (as root):
$this->bbcode_second_pass_code('', 'rpi-eeprom-update -a')