SM6FBQ / HackRF clone - History

SGPIO: Add CPLD RX Q channel inversion, API to control.

Change SGPIO CPLD decimation API interface to be one-based (decimation of 1 to 8).

Minor changes to tx_callback

Finalize the error procedure that was accidentally deleted.

Add signal source mode to hackrf_transfer

Now hackrf_transfer can act as an analog signal source to generate a
pure SINE wave at the given frequency.

si5351c_activate_best_clock_source() when starting RX or TX

commented si5351c_activate_best_clock_source() trying to solve intermittent USB failures