Adding support for MOXA ART SoC. Testing port of linux-2.6.32.60-moxart.
[linux-3.6.7-moxart.git] / Documentation / ABI / testing / sysfs-bus-iio-frequency-adf4350
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1 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution
2 KernelVersion:  3.4.0
3 Contact:        linux-iio@vger.kernel.org
4 Description:
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.
11 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency
12 KernelVersion:  3.4.0
13 Contact:        linux-iio@vger.kernel.org
14 Description:
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 it's RFOut buffers during REFin changes.