NI_GPCT_NEXT_TC_CLOCK_SRC_BITS
clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
case NI_GPCT_NEXT_TC_CLOCK_SRC_BITS:
case NI_GPCT_NEXT_TC_CLOCK_SRC_BITS: