ni_tio_clock_period_ps 485 drivers/staging/comedi/drivers/ni_tio.c ret = ni_tio_clock_period_ps(counter, clk_src, &ps); ni_tio_clock_period_ps 818 drivers/staging/comedi/drivers/ni_tio.c ret = ni_tio_clock_period_ps(counter, *clock_source, &temp64);