NI_GPCT_CLOCK_SRC_SELECT_MASK
switch (generic_clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK) {
unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK;
unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK;
switch (clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK) {