Here is a list of all enum values with links to the files they belong to:

C6DOFIMU28_DRV_SEL_I2C : c6dofimu28.h
C6DOFIMU28_DRV_SEL_SPI : c6dofimu28.h
C6DOFIMU28_ERROR : c6dofimu28.h
C6DOFIMU28_OK : c6dofimu28.h