xref: /linux/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
2KernelVersion:	3.4.0
3Contact:	linux-iio@vger.kernel.org
4Description:
5		Stores channel Y frequency resolution/channel spacing in Hz.
6		The value given directly influences the MODULUS used by
7		the fractional-N PLL. It is assumed that the algorithm
8		that is used to compute the various dividers, is able to
9		generate proper values for multiples of channel spacing.
10
11What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency
12KernelVersion:	3.4.0
13Contact:	linux-iio@vger.kernel.org
14Description:
15		Sets channel Y REFin frequency in Hz. In some clock chained
16		applications, the reference frequency used by the PLL may
17		change during runtime. This attribute allows the user to
18		adjust the reference frequency accordingly.
19		The value written has no effect until out_altvoltageY_frequency
20		is updated. Consider to use out_altvoltageY_powerdown to power
21		down the PLL and its RFOut buffers during REFin changes.
22