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How to set ADRV9009 rf_bandwidth using libiio?


I try to control ADRV9009 board with ZCU102 using libiio. I have been tried to change /sys/bus/iio/device/iio:devicex/in_voltageX_rf_bandwidth but i can not . After i realized that the file is readonly.

How can i control rf_bandwidth using libiio? Is it possible? How can i change other attribute like sample rate,rf bandwidth etc? I didn' t see any example that explain how to change. 

Can anyone help me?

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