8-bit samples

I have looked everywhere, including through the Verilog FPGA code and in
the Python scripts, but nowhere can I find how to use 8-bit samples.
According to usrp_fft.py, the -8 and --no-hb options should allow a
decimation factor of 4, but nothing I can do will return anything but
zeroes. It has been mentioned in other discussions on this list that
this was working in the past, so what gives? Getting very frustrated


~Jeffrey L., K1VZX