Oh, feeling so dumb now!

Could have come across that from multiboots preinit code
[code]
case "$DEV" in
watchdog) minor=130 ;;
twl4030_wdt) minor=142 ;;
twl4030-adc) minor=58 ;;
*) minor="" ;;
esac
[code]
myself. But maybe was too afraid to mess it up...

Thank you two.