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how to change the default value of in_voltage_hardwaregain in ad9361 device driver

Question asked by hammerclavier on Mar 24, 2017
Latest reply on Mar 29, 2017 by mhennerich

based on this page : AD9361 high performance, highly integrated RF Agile Transceiver™ Linux device driver [Analog Devices Wiki]  I am able to change the rx/tx gains while the arm is up by simply "echo" ing the value into the corresponding iio device. Also by changing the device tree value for ad9361 register I was able to change a lot of registers default value. 

 

But It seems I cannot define in_voltage0_hardwaregain in the device tree. 

 

So to summarize I need to set a default value for rx/tx gain in the manual mode. I can modify the device tree to set it to manual, but I don't know how to set a default value for in_voltage0_hardwaregain and  in_voltage1_hardwaregain. 

 

Thanks, 

 

Sean larsc mhennerich 

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