Errors when building IIO-oscilloscope on Ubuntu

Question

[ 7%] Building C object CMakeFiles/osc.dir/fru.c.o /home/erwin/iio-oscilloscope/iio_utils.c: In function &lsquo;get_iio_device_label_or_name&rsquo;: /home/erwin/iio-oscilloscope/iio_utils.c:148:7: error: implicit declaration of function &lsquo;iio_device_get_label&rsquo;; did you mean &lsquo;iio_device_get_name&rsquo;? [-Werror=implicit-function-declaration] id = iio_device_get_label(dev); ^~~~~~~~~~~~~~~~~~~~ iio_device_get_name /home/erwin/iio-oscilloscope/iio_utils.c:148:5: error: assignment makes pointer from integer without a cast [-Werror=int-conversion] id = iio_device_get_label(dev); ^ cc1: all warnings being treated as errors CMakeFiles/osc.dir/build.make:158: recipe for target 'CMakeFiles/osc.dir/iio_utils.c.o' failed make[2]: *** [CMakeFiles/osc.dir/iio_utils.c.o] Error 1 make[2]: *** Waiting for unfinished jobs.... CMakeFiles/Makefile2:104: recipe for target 'CMakeFiles/osc.dir/all' failed make[1]: *** [CMakeFiles/osc.dir/all] Error 2 Makefile:129: recipe for target 'all' failed make: *** [all] Error 2 
 
 Did anybody see the same? What could be the reason and a solution? 
 
 Thanks 
 Erwin

ADIApproved · Accepted Answer

Hi Erwin, 
 If you are building iio-oscilloscope from git master, make sure that you are also using libiio from git master. The iio_device_get_label function it fails to see was added to libiio after the 0.21 release, and will be available in the 0.22 release. 
 Cheers, 
 -Paul)

travisfcollins · Answer

waterwin said: erwin@UBU2004:~$ cd iio-oscilloscope erwin@UBU2004:~/iio-oscilloscope$ ./osc bash: ./osc: No such file or directory erwin@UBU2004:~/iio-oscilloscope$ 
 This pathing assumes you built the library in the same place as the source. In the exact same folder. Now if you built it in say a subfolder named build you would have to run: 
 cd iio-oscilloscope 
 cd build 
 ./osc 
 
 waterwin said: The states shown are not in parallel to each other but after each other as you can not start a second osc when the Adalm Pluto is already occupied/connected to the first 
 This is expected if you are using the USB contexts to connect to Pluto. Only one can be used at a time. Using the IP address will allow multiple connections to the same device. 
 waterwin said: It looks as if the Sweep only works with the Rev.C and not with the Rev.B HW? 
 You likely have different versions of IIO-Scope between the two machines. Rev B vs Rev C makes no difference. IIO-Scope does not treat them any differently. There is a known bug with the spectrum analyzer sweeper that might be related to the different versions: https://github.com/analogdevicesinc/iio-oscilloscope/issues/315 
 We usually recommend the users stick with the standard capture window and Frequency Domain plot. The sweeper tab only works well when run on the device itself, when you have low latency access to the fastlock profile selection. Not over USB or Ethernet. This would apply to something like a FMComms3+ZC706 or ADRV9361-Z7035. 
 -Travis

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Errors when building IIO-oscilloscope on Ubuntu