Instalare libiio pe Raspberry Pi

Instalare libiio pe Raspberry Pi

Descărcare libiio și pregătire

Problemele care apar (lipsa librăriilor) sunt evidențiate în galben și vor fi tratate în capitolul următor.

tom@rpi-i2s:~/programare $ git clone https://github.com/analogdevicesinc/libiio.git

Cloning into 'libiio'...
remote: Enumerating objects: 20695, done.
remote: Counting objects: 100% (508/508), done.
remote: Compressing objects: 100% (276/276), done.
remote: Total 20695 (delta 346), reused 242 (delta 231), pack-reused 20187 (from 4)
Receiving objects: 100% (20695/20695), 20.65 MiB | 7.48 MiB/s, done.
Resolving deltas: 100% (13821/13821), done.

tom@rpi-i2s:~/programare $ cd libiio/
tom@rpi-i2s:~/programare/libiio $ mkdir build
tom@rpi-i2s:~/programare/libiio $ cd build/
tom@rpi-i2s:~/programare/libiio/build $ cmake ../

-- cmake version: 3.18.4
-- The C compiler identification is GNU 10.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Performing Test HAS_WPEDANTIC
-- Performing Test HAS_WPEDANTIC - Success
-- Performing Test HAS_WSHADOW
-- Performing Test HAS_WSHADOW - Success
-- Looking for strdup
-- Looking for strdup - found
-- Looking for strndup
-- Looking for strndup - found
-- Looking for strerror_r
-- Looking for strerror_r - found
-- Looking for strtok_r
-- Looking for strtok_r - found
-- Looking for newlocale
-- Looking for newlocale - found
-- Looking for in6addr_any
-- Looking for in6addr_any - found
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.2") 
-- Checking for module 'libusb-1.0'
--   Found libusb-1.0, version 1.0.24
-- Looking for libusb_get_version
-- Looking for libusb_get_version - found
-- Found Git: /usr/bin/git (found version "2.30.2") 
CMake Error at CMakeLists.txt:474 (message):
  Unable to find libzstd dependency.

  If you want to disable ZSTD compression support, set WITH_ZSTD=OFF.


-- Performing Test WITH_NETWORK_EVENTFD
-- Performing Test WITH_NETWORK_EVENTFD - Success
CMake Error at CMakeLists.txt:543 (message):
  Unable to find libavahi-common / libavahi-client dependencies.

  If you want to disable DNS-SD (ZeroConf) support, set HAVE_DNS_SD=OFF.


-- Could NOT find LibXml2 (missing: LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR) 
CMake Error at CMakeLists.txt:579 (message):
  Unable to find libxml2 dependency.

  If you want to disable the XML backend, set WITH_XML_BACKEND=OFF.


-- Looking for pthread_setname_np
-- Looking for pthread_setname_np - found
-- Could NOT find BISON (missing: BISON_EXECUTABLE) 
-- Could NOT find FLEX (missing: FLEX_EXECUTABLE) 
CMake Error at iiod/CMakeLists.txt:26 (flex_target):
  Unknown CMake command "flex_target".


-- Configuring incomplete, errors occurred!
See also "/home/tom/programare/libiio/build/CMakeFiles/CMakeOutput.log".

Tratare erori și librării lipsă

tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y libzstd-dev
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y libavahi-client-dev
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y libxml2-dev
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y bison
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y flex
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y libaio1
tom@rpi-i2s:~/programare/libiio/build $ sudo apt install -y libaio-dev

Compilare

tom@rpi-i2s:~/programare/libiio/build $ make all
Scanning dependencies of target iiod-responder
[  1%] Building C object CMakeFiles/iiod-responder.dir/iiod-responder.c.o
...
[ 98%] Building C object iiod/CMakeFiles/iiod.dir/dns-sd.c.o
[100%] Linking C executable iiod
[100%] Built target iiod

tom@rpi-i2s:~/programare/libiio/build $ sudo make install
[  3%] Built target iiod-responder
[  7%] Built target iio-compat
[ 50%] Built target iio
[ 55%] Built target iio_tests_helper
[ 58%] Built target iio_genxml
[ 61%] Built target iio_stresstest
[ 64%] Built target iio_info
[ 67%] Built target iio_attr
[ 70%] Built target iio_rwdev
[ 73%] Built target iio_reg
[ 76%] Built target iio_event
[100%] Built target iiod
Install the project...
-- Install configuration: "RelWithDebInfo"
-- Installing: /usr/lib/aarch64-linux-gnu/pkgconfig/libiio.pc
-- Installing: /usr/lib/aarch64-linux-gnu/libiio.so.1.0
-- Installing: /usr/lib/aarch64-linux-gnu/libiio.so.1
-- Installing: /usr/lib/aarch64-linux-gnu/libiio.so
-- Installing: /usr/include/iio/iio.h
-- Installing: /usr/include/iio/iio-debug.h
-- Installing: /usr/include/iio/iio-lock.h
-- Installing: /usr/include/iio/iiod-client.h
-- Installing: /usr/lib/aarch64-linux-gnu/libiio.so.0
-- Installing: /usr/bin/iio_genxml
-- Installing: /usr/bin/iio_info
-- Installing: /usr/bin/iio_attr
-- Installing: /usr/bin/iio_rwdev
-- Installing: /usr/bin/iio_reg
-- Installing: /usr/bin/iio_event
-- Installing: /usr/bin/iio_stresstest
-- Installing: /lib/udev/rules.d/90-libiio.rules
-- Installing: /usr/sbin/iiod
-- Set runtime path of "/usr/sbin/iiod" to ""

După instalare, directorul build arată:

tom@rpi-i2s:~/programare/libiio/build $ ls -lsa
total 1204
  4 drwxr-xr-x  7 tom  tom    4096 Mar 19 22:34 .
  4 drwxr-xr-x 17 tom  tom    4096 Mar 19 22:24 ..
  4 -rw-r--r--  1 tom  tom     152 Mar 19 22:30 90-libiio.rules
  8 -rw-r--r--  1 tom  tom    4453 Mar 19 22:30 artifact_manifest.txt
  4 drwxr-xr-x  3 tom  tom    4096 Mar 19 22:33 bindings
 28 -rw-r--r--  1 tom  tom   27733 Mar 19 22:33 CMakeCache.txt
  4 drwxr-xr-x  9 tom  tom    4096 Mar 19 22:34 CMakeFiles
  8 -rw-r--r--  1 tom  tom    6872 Mar 19 22:33 cmake_install.cmake
  4 -rw-r--r--  1 tom  tom    3574 Mar 19 22:30 cmake_uninstall.cmake
  4 -rw-r--r--  1 tom  tom    1338 Mar 19 22:30 iio-config.h
  4 drwxr-xr-x  3 tom  tom    4096 Mar 19 22:33 iiod
  4 -rw-r--r--  1 root root    497 Mar 19 22:34 install_manifest.txt
 72 -rw-r--r--  1 tom  tom   72566 Mar 19 22:33 libiiod-responder.a
  4 -rw-r--r--  1 tom  tom    3386 Mar 19 22:30 libiio.iss
  4 -rw-r--r--  1 tom  tom     227 Mar 19 22:30 libiio.pc
  0 lrwxrwxrwx  1 tom  tom      11 Mar 19 22:33 libiio.so -> libiio.so.1
176 -rwxr-xr-x  1 tom  tom  177912 Mar 19 22:33 libiio.so.0
  0 lrwxrwxrwx  1 tom  tom      13 Mar 19 22:33 libiio.so.1 -> libiio.so.1.0
824 -rwxr-xr-x  1 tom  tom  839800 Mar 19 22:33 libiio.so.1.0
 32 -rw-r--r--  1 tom  tom   32741 Mar 19 22:33 Makefile
  4 drwxr-xr-x  3 tom  tom    4096 Mar 19 22:33 man
  4 drwxr-xr-x  3 tom  tom    4096 Mar 19 22:33 utils
  4 -rw-r--r--  1 tom  tom      13 Mar 19 22:33 .version

Verificare instalare

În cazul de față am un Adalm Pluto conectat pe USB:

tom@rpi-i2s:~/programare/libiio/build $ iio_info
iio_info version: 1.0 (git tag:0313659f)
Libiio version: 1.0 (git tag: 0313659f) backends: local ip usb xml
IIO context created with local backend.
Backend version: 1.0 (git tag: 0313659f)
Backend description string: Linux rpi-i2s 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023 aarch64
IIO context has 2 attributes:
	attr  0: local,kernel value: 6.1.21-v8+
	attr  1: uri value: local:
IIO context has 2 devices:
	hwmon0: cpu_thermal
		1 channels found:
			temp1:  (input)
			2 channel-specific attributes found:
				attr  0: crit (temp1_crit) value: 110000
				attr  1: input (temp1_input) value: 51608
		No trigger on this device
	hwmon1: rpi_volt
		1 channels found:
			in0:  (input)
			1 channel-specific attributes found:
				attr  0: lcrit_alarm (in0_lcrit_alarm) value: 0
		No trigger on this device
tom@rpi-i2s:~/programare/libiio/build $ iio_info -S
Available contexts:
	0: 0456:b673 (Analog Devices Inc. PlutoSDR (ADALM-PLUTO)), serial=1044730a19970019030031006a5f7c113d [usb:1.3.5]
	1: (cpu_thermal,rpi_volt on Raspberry Pi 4 Model B Rev 1.4) [local:]
	2: 192.168.2.1 (v0.37), serial=ad9363a [ip:pluto.local]

Alte link-uri utile

• What is libiio?
• Installing libad9361 from source
• PlutoSDR in Python