MPU9250 and MSP430

I’m running the Embedded MotionDriver 6.12 software on MSP430F6638 processor and communicating with a MPU-9250 via I2C. I’m using the DMP to perform 6-axis fusion and the MPL to add in the compass data for 9-axis fusion. I have several questions about the MPL library.

1) How can I determine the status of the compass calibration? Presumably I need to perform some figure-eight patterns but I don’t know how to perform it
2) Is there any documentation on the MPL functions? There was none included in the MotionDriver 6.12 zip file and the header files don’t have any comments.

Thanks
Samir