axi-adrv9009-rx-obs-hpc : entry missing in the Analog Linux virtual file system

Question

Hi Analog, 
 
 I'm building the Analog Linux kernel for the adrv9009-W-PCBZ board plugged into the Xilinx zcu102. Everything works out except the entry in the virtual filesystem for the observation channel which should be: 
 "iio:device4" name="axi-adrv9009-rx-obs-hpc"

To be found in:

 /sys/bus/iio/devices/iio:device4/name 
 
 When I look in the device tree there is a need for this driver: axi-adrv9009-obs-1.0. 
 The other defined addresses show up as normal in the described in the device tree except this one. 
 Can you point me where this thing goes wrong? 
 
 Deville

DragosB · Accepted Answer

Hi, 
 This is the corresponding driver: https://github.com/analogdevicesinc/linux/blob/master/drivers/iio/adc/ad_adc.c#L248 
 It can be included by enabling CONFIG_ADMC : https://github.com/analogdevicesinc/linux/blob/master/drivers/iio/adc/Makefile#L57 
 Dragos)

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axi-adrv9009-rx-obs-hpc : entry missing in the Analog Linux virtual file system