Usage: flx-init [OPTIONS]
Initializes an FLX card.
General:
  -c <number>         Use card indicated by <number> (default: 0).
  -h                  Display help.
  -V                  Display the version number
  -v                  Display verbose output.
  -E                  Execute the command even if resources are locked.
  -L                  Set clock to 'Local' (default: leave-as-is).
  -T                  Set clock to 'TTC' (default: leave-as-is).
  -s <secs>           If necessary wait up to <secs> seconds for locks to be freed
                      when attempting to open the card (default: 5 secs)
GBT calibration:
  -a ONE|CONTINUOUS   Select alignment type (default: ONE).
  -t FEC|WideBus      Select transmission mode (default: FEC).
Clock configuration:
  -I <input_sel>      The value given is written to register HK_CTRL_FMC_SI5345_INSEL
                      before Si5345 initialisation;
                      valid <input_sel> values are (default: 0):
                        0-->FPGA (LA01), 1-->FMC OSC, 2-->FPGA (LA18)
  -G <number>         Read and display Si53xx chip registers (doesn't initialize anything);
                      legal values are: 1=Si5324 (709 only), 2=Si5345
