[ft] Calling interfaces of one module in another

[Ammar ul hassan]

Is there a way we can call a custom function in a driver module from
another driver module?

For example i have a custom function in Type1 driver module
like T1_Face_Info_Custom_Func( ).
Can i call this function directly from base layer or any other driver
module like TrueType driver module.

I tried to use FT_Get_Module_interface() but it looks like it can only work
if a service is made. And FT_Driver provides limited interfaces like
FT_Face_InitFunc init_face, FT_Face_DoneFunc done_face.