M98 and M99 backlash compensation commands? (Marlin)

[printrboy]

What about the one I linked to which Solidoodle uses? I'm not a programmer.

[Roxy]

The files Hysteresis.h and .cpp are in the .ZIP file from Solidoodle. But key functions defined in those such as:

void Hysteresis::SetAxis( int axis, float mm )

Are never referenced. And there is no M98 or M99 command in that set of files. It doesn't look like this was ever connected up and made to work.