We don’t have explicit support for Malaysia at this stage - and unfortunately our BCF modification tools won’t allow adding regions we don’t yet explicitly support. There’s a few other moving parts to adding a region including modifying the morse-regdb and making sure the driver has appropriate mappings (for Linux - see morse_driver/dot11ah/reg_rules.c at main · MorseMicro/morse_driver · GitHub)
In the meantime, it looks like Malaysia is a subset of the US so perhaps your best course of action right now is to artificially restrict the channels in the US driver regdom to prevent the driver advertising limits outside of the MY regulatory rules.
Just to confirm — we’re working with the OpenWrt .
Since Malaysia isn’t explicitly supported yet and the BCF tools can’t add new regions, we understand that the best option for now is to use the US regdom and manually restrict channels so they stay within Malaysia’s allowed 919–923 MHz band.