Add a new command in Grub2

[manik sheeri]

Hi,

I have an embedded system with grub2 as the bootloader and I am
required to write a new command to achieve some functionality.

I looked at the manual and could not find any API references or
development manuals.

Is there a reference for APIs ? Also, is there a guide on how to add a
new command in grub2 ?

I can look at the source code of already existing commands and figure
out how to add one but that is time consuming and not sure if I will
be following correct methodology.

Thanks,
M