1*4882a593SmuzhiyunWhat: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution 2*4882a593SmuzhiyunKernelVersion: 3.4.0 3*4882a593SmuzhiyunContact: linux-iio@vger.kernel.org 4*4882a593SmuzhiyunDescription: 5*4882a593Smuzhiyun Stores channel Y frequency resolution/channel spacing in Hz. 6*4882a593Smuzhiyun The value given directly influences the MODULUS used by 7*4882a593Smuzhiyun the fractional-N PLL. It is assumed that the algorithm 8*4882a593Smuzhiyun that is used to compute the various dividers, is able to 9*4882a593Smuzhiyun generate proper values for multiples of channel spacing. 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunWhat: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency 12*4882a593SmuzhiyunKernelVersion: 3.4.0 13*4882a593SmuzhiyunContact: linux-iio@vger.kernel.org 14*4882a593SmuzhiyunDescription: 15*4882a593Smuzhiyun Sets channel Y REFin frequency in Hz. In some clock chained 16*4882a593Smuzhiyun applications, the reference frequency used by the PLL may 17*4882a593Smuzhiyun change during runtime. This attribute allows the user to 18*4882a593Smuzhiyun adjust the reference frequency accordingly. 19*4882a593Smuzhiyun The value written has no effect until out_altvoltageY_frequency 20*4882a593Smuzhiyun is updated. Consider to use out_altvoltageY_powerdown to power 21*4882a593Smuzhiyun down the PLL and its RFOut buffers during REFin changes. 22