VPMADT032 module not seen or working

I have a AEX410 series card (2x FXO, 2xFXS) install on a fedora system running kernel 4.11. I was able to install using the dahdi_linux-next version as there are issues with compiling 2.11.1 with kernel 4.11. While the card works, the EC module (vpmadt032) is not recognized. dmesg shows the loading of the wctdm24xxp and the dahdi modules, but there are no vpm modules loaded.

The card is functioning - I am able to make and received calls from the PSTN using FXO modules and the FXS are working properly with analogue phones. However, I would like to use the HW EC module.

Any suggestions for getting the module to work?