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