18c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution 28c2ecf20Sopenharmony_ciKernelVersion: 3.4.0 38c2ecf20Sopenharmony_ciContact: linux-iio@vger.kernel.org 48c2ecf20Sopenharmony_ciDescription: 58c2ecf20Sopenharmony_ci Stores channel Y frequency resolution/channel spacing in Hz. 68c2ecf20Sopenharmony_ci The value given directly influences the MODULUS used by 78c2ecf20Sopenharmony_ci the fractional-N PLL. It is assumed that the algorithm 88c2ecf20Sopenharmony_ci that is used to compute the various dividers, is able to 98c2ecf20Sopenharmony_ci generate proper values for multiples of channel spacing. 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency 128c2ecf20Sopenharmony_ciKernelVersion: 3.4.0 138c2ecf20Sopenharmony_ciContact: linux-iio@vger.kernel.org 148c2ecf20Sopenharmony_ciDescription: 158c2ecf20Sopenharmony_ci Sets channel Y REFin frequency in Hz. In some clock chained 168c2ecf20Sopenharmony_ci applications, the reference frequency used by the PLL may 178c2ecf20Sopenharmony_ci change during runtime. This attribute allows the user to 188c2ecf20Sopenharmony_ci adjust the reference frequency accordingly. 198c2ecf20Sopenharmony_ci The value written has no effect until out_altvoltageY_frequency 208c2ecf20Sopenharmony_ci is updated. Consider to use out_altvoltageY_powerdown to power 218c2ecf20Sopenharmony_ci down the PLL and its RFOut buffers during REFin changes. 22