Yes there are several especially one that is talking about it on Vero4k, I suggest to jump on that thread to discuss.
General steps is:
- Ensure the driver is loaded
lsmod
- Download latest Firmware and ensure it is in the right spot http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-B40/4.0.11/dvb-demod-si2168-b40-01.fw