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<!DOCTYPE html>
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<header id="top">
<a href="http://analogdevicesinc.github.io/libiio/"><img src=
"img/iio_logo.png" alt="IIO logo"></a> <br> <strong>A cross-platform user
library to access Industrial Input Output (IIO) devices</strong>
<br>Version @LIBIIO_VERSION_MAJOR@.@LIBIIO_VERSION_MINOR@-g@LIBIIO_VERSION_GIT@
</header>
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Ubuntu packages</a>
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<a href="https://www.npmjs.com/package/libiio">NPM</a>
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<hr>
<section>
<h1>Welcome to the libIIO</h1>
<p style="margin-bottom:0em;">Thanks for your interest in the libIIO, a
C/C++ library that provides generic access to Industrial Input Output (IIO)
devices. IIO started as a <a href=
"https://www.kernel.org/doc/html/latest/driver-api/iio/index.html">Linux
kernel subsystem</a> to support for devices that included
analog-to-digital converters (ADCs) and/or digital-to-analog converters
(DACs). While the libIIO continues to provide an easy interface to the
Linux kernel IIO subsystem, it has also expanded beyond that, and is now
just as common to see this used inside an embedded system or hypervisor as
it is on a host PC.</p>
<p style="margin-bottom:0em;">It is portable: Using a single cross-platform
API, it provides access to IIO devices on Linux, macOS, Windows, etc across
local and remote (USB, Network, Serial) devices. The library is composed by
one high-level API, and several backends:</p>
<ul>
<li>the <b><i>local</i></b> backend, which interfaces the Linux kernel
through the sysfs virtual filesystem,</li>
<li>the <b><i>remote</i></b> backend, which communicates to an
<b><i>iiod</i></b> server through a network, usb or serial (<a href=
"https://en.wikipedia.org/wiki/RS-232">wired</a>, <a href=
"https://en.wikipedia.org/wiki/USB_communications_device_class">USB
CDC</a>, or <a href=
"https://en.wikipedia.org/wiki/List_of_Bluetooth_profiles#Serial_Port_Profile_(SPP)">
Bluetooth SPP</a>) link. The <b><i>iiod</i></b> server can run on a:
<ul>
<li>Linux host (an <a href=
"https://github.com/analogdevicesinc/libiio/tree/master/iiod">IIO
daemon</a> is included part of libIIO), this would typically
communicate to a libIIO client over the network or USB; or
</li>
<li>a deeply embedded, resource constrained system (like Arduino)
managed separately as <a href=
"https://github.com/analogdevicesinc/libtinyiiod">tiny-iiod</a>; this
would typically communicate to a libIIO client over the network, or
serial.
</li>
</ul>
</li>
</ul>
<p>It is entirely user-mode: No special privilege or elevation is required
for the application to communicate with a device. One of the most powerful
things about libiio is its <a href=
"https://en.wikipedia.org/wiki/Remote_procedure_call">Remote Procedure
Call</a> style interface. Moving backends from USB to Networking to local
embedded does not require any code changes. The users of the libIIO do not
need to code any differently for the remote interaction, making it easy to
move from remote (debug on PC over Ethernet) to local (deployed on embedded
Linux).</p>
<h3>What platforms are supported?</h3>
<p>Any host running Linux, macOS, Windows, or OpenBSD/NetBSD, should be
trivial to get libIIO running on. If you are interested in porting to other
hosts that support either networking (socket interface), <a href=
"https://libusb.info/">libusb</a> or serial, it should be very
straightforward. <a href=
"https://github.com/analogdevicesinc/libiio/pulls">Pull Requests</a> are
always reviewed, and well written ones are normally accepted.</p>
<p>The local backend and Linux daemon can run on any embedded Linux based
system, from purpose built systems like <a href=
"http://www.analog.com/plutosdr">PlutoSDR</a> or <a href=
"http://www.analog.com/adalm2000">ADALM2000</a> to <a href=
"https://www.raspberrypi.org/">Raspberry Pi</a> or <a href=
"https://beagleboard.org/">BeagleBoard</a> to <a href=
"https://www.nvidia.com/en-us/autonomous-machines/jetson-store/">Jetson</a>.
<a href="https://github.com/analogdevicesinc/libtinyiiod">tiny-iiod</a>
requires a modern C compiler and is known to work on a variety of non-Linux
frameworks including <a href="https://www.mbed.com/">Mbed</a> and <a href=
"https://www.freertos.org/">FreeRTOS</a>.</p>
<h3>Sounds good! How do I get started?</h3>
<p>If you are using Linux, chances are your distribution already includes
libIIO, so you probably just need to reference the <b><kbd>iio.h</kbd></b>
header in your source.</p>
<p>For other platforms, you are encouraged to use one of our <a href=
"https://github.com/analogdevicesinc/libiio/releases/latest">release
builds</a>. If you want to use the very latest, you have the option to
use a nightly build or build from source. Please check the Downloads
menu.</p>
<p>If you prefer, you can also access the source directly from <a href=
"https://github.com/analogdevicesinc/libiio">github</a>.</p>
<p>Once you have secured your access to the library and its header, please
check the libIIO API or the libIIO examples.</p>
<h3>Where is (insert my favourite language) support?</h3>
<p>The mainline library is written in C, and has built in
bindings for C++, Python and C# (C-Sharp). <a href=
"https://github.com/drom/node-iio">Node.js</a> and <a href=
"https://github.com/fpagliughi/rust-industrial-io">Rust</a> are maintained
outside the main repo. If you are interested in creating more language
bindings, please <a href=
"https://github.com/analogdevicesinc/libiio/issues">reach out</a> to the
developers by posting an issue on github.</p>
</section>
<section>
<h3>Help and Support</h3>
<p>If you have any questions regarding the libIIO or are experiencing any
problems following the documentation, or examples, feel free to ask us a
question. Generic libIIO questions can be asked on <a href=
"https://github.com/analogdevicesinc/libiio/issues">Github Issue
tracker</a>. Since libIIO provides connectivity to the kernel's IIO
framework - many times the problem is actually in the driver. In this case,
contact your favourite kernel developer. If you are using an <a href=
"http://wiki.analog.com/linux">Analog Devices'</a> component, feel free
to ask on their <a href=
"https://ez.analog.com/linux-software-drivers/">Linux support</a>
forums.</p>
</section>
<hr>
<section>
<a class="anchor" href="#top">Back to top</a>
<h3>Frameworks</h3>
<p>Use the libIIO with your favourite open source or commercial signal
processing framework, visualization tool or application.</p>
<table>
<thead>
<tr>
<th>Frameworks or Applications which use libIIO</th>
<th>OS</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">
<a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/cmd_line">
IIO Command Line Tools</a>
</td>
<td>Windows, Linux, macOS</td>
<td>
<a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/iio_info">
iio_info</a>, <a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/iio_attr">
iio_attr</a>, <a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/iio_readdev">
iio_readdev</a>, <a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/iio_writedev">
iio_writedev</a>, <a href=
"https://wiki.analog.com/resources/tools-software/linux-software/libiio/iio_reg">
iio_reg</a> for interacting with IIO devices from your favorite
shell. These are included in the default builds, but many
distributions package them into a separate libiio-utils package.
When you want to try a simple example, check these out.
</td>
</tr>
<tr>
<td style="text-align:center">
<a href="https://github.com/analogdevicesinc/pyadi-iio"><img src=
"img/PyADI-IIO_Logo_72.png" alt="Peyote logo"></a>
</td>
<td>Windows, Linux, macOS</td>
<td>
<a href=
"https://github.com/analogdevicesinc/pyadi-iio">Pyadi-iio</a>
(pronounced peyote) is a python abstraction module for ADI hardware
with IIO drivers to make them easier to use. The libIIO interface,
although extremely flexible, can be cumbersome to use due to the
amount of boilerplate code required. This Python module has custom
interfaces classes for specific parts and development systems which
can generally make them easier to understand and use.
</td>
</tr>
<tr>
<td style="text-align:center">
<a href=
"https://chromium.googlesource.com/chromiumos/platform2/+/master/libmems">
<img src="img/Chromium-OS-Logo.png" alt="Chromium OS Logo"></a>
</td>
<td>Chrome OS</td>
<td>
the <a href=
"https://chromium.googlesource.com/chromiumos/platform2/+/master/libmems">
libmems</a> provides a set of wrapper and test helpers around
<a href=
"https://chromium.googlesource.com/chromiumos/third_party/libiio/">libIIO</a>.
It is meant to provide a common foundation for Chrome OS to access
and interface IIO sensors
</td>
</tr>
<tr>
<td style="text-align:center">
<a href="https://www.mathworks.com/discovery/sdr"><img src=
"img/mathworks_logo.png" alt="MathWorks logo"></a>
</td>
<td>
<a href="https://www.mathworks.com/support/sysreq.html">Windows,
Linux, macOS</a>
</td>
<td>
Use libIIO to Connect MATLAB® and Simulink® to <a href=
"https://www.mathworks.com/hardware-support/adalm-pluto-radio.html">
PlutoSDR</a>, <a href=
"https://www.mathworks.com/hardware-support/zynq-sdr.html">ADRV9361-Z7035
RF SoM, or AD9361 based evaluation boards</a>, and other <a href=
"https://www.mathworks.com/products/connections/product_detail/adi-rf-transceivers.html">
RF</a> <a href=
"https://www.mathworks.com/matlabcentral/fileexchange/72645-analog-devices-inc-transceiver-toolbox">
platforms</a>, <a href=
"https://wiki.analog.com/resources/tools-software/hsx-toolbox">high
speed converters</a>, and <a href=
"https://wiki.analog.com/resources/tools-software/sensor-toolbox">sensors</a>
to prototype, verify, and test practical systems. Request a
<a href="https://www.mathworks.com/campaigns/products/trials.html?prodcode=CM">
zero-cost trial</a> and then explore and experiment with a variety
of <a href=
"https://www.mathworks.com/help/supportpkg/plutoradio/examples.html">
signal processing and radio examples</a>.
</td>
</tr>
<tr>
<td style="text-align:center;">
<a href="https://www.gnuradio.org/"><img src=
"img/GNURadio_logo.png" alt="GNU Radio logo"></a>
</td>
<td>Linux, macOS</td>
<td>
GNU Radio is a Free and Open-Source Toolkit for Software Radio,
primarily supported on Linux operating systems. It has both
<a href="https://wiki.analog.com/resources/tools-software/linux-software/gnuradio">
generic IIO blocks</a>, and blocks for specific IIO devices like
the <a href=
"https://wiki.analog.com/university/tools/pluto/gnuradio">PlutoSDR</a>
</td>
</tr>
<tr>
<td style="text-align:center">
<a href=
"https://github.com/analogdevicesinc/iio-oscilloscope/releases/latest">
<img style="vertical-align:middle;" src="img/osc128.png" alt=
"Osc logo"><span style="vertical-align:middle;"> IIO
Oscilloscope</span></a>
</td>
<td>Windows, Linux</td>
<td>The IIO Oscilloscope is an application, which demonstrates how to
interface various IIO devices to different visualization methods on
Linux and Windows</td>
</tr>
<tr>
<td style="text-align:center">
<a href="https://github.com/f4exb/sdrangel"><img src=
"img/sdrangel.png" alt="SDRAngel logo"></a>
</td>
<td>Windows, Linux</td>
<td>
<a href=
"https://github.com/f4exb/sdrangel/releases/latest">SDRangel</a> is
an Open Source Qt5 / OpenGL 3.0+ SDR and signal analyzer frontend
to various hardware. Check the <a href=
"https://groups.io/g/sdrangel">discussion group</a> and <a href=
"https://github.com/f4exb/sdrangel/wiki">wiki</a>. While SDRangel
seeks to be approachable, it is targeted towards the experienced
SDR user with some digital signal processing understanding. It
supports libIIO for the PlutoSDR, and can be extended to support
many other IIO devices.
</td>
</tr>
<tr>
<td style="text-align:center">
<a href=
"https://wiki.analog.com/university/tools/m2k/scopy"><img style=
"vertical-align:middle;" src="img/scopy.png" alt=
"Scopy logo"> Scopy</a>
</td>
<td>Windows, Linux, macOS</td>
<td>
Scopy is a multi-functional software toolset that supports
traditional instrument interfaces with Oscilloscope, Spectrum
Analyzer, Network Analyzer, Signal Generator, Logic Analyzer,
Pattern Generator, Digital IO, Voltmeter, Power Supply interfaces
for the <a href="http://www.analog.com/adalm2000">ADALM2000</a>. It
is built in Qt5 in C++, and is available under a open source
license on <a href=
"https://github.com/analogdevicesinc/scopy">github</a>.
</td>
</tr>
<tr>
<td style="text-align:center">
<a href="https://legato.io/"><img src="img/legato_logo.png" alt=
"Legato logo"></a>
</td>
<td></td>
<td>
The Legato Application Framework started out as an initiative by
Sierra Wireless Inc. to provide an open, secure and easy to use
Application Framework to grow the "Internet of
Everything". Legato uses <a href=
"https://github.com/legatoproject/legato-3rdParty-libiio">libIIO</a>
to interface with real world sensors.
</td>
</tr>
<tr>
<td style="text-align:center">
<a href="https://mangoh.io/"><img src="img/mangOH_logo.png" alt=
"mangOH logo"></a>
</td>
<td></td>
<td>
From idea to prototype to product, mangOH® is industrial-grade open
source hardware designed to address common IoT pain points and
deliver 90% of your prototype out-of-the-box so you can focus your
time and resources building the next killer IoT application and
bringing your products to market sooner. mangOH uses <a href=
"https://github.com/mangOH/libiio">libIIO</a> to interface with
real world sensors.
</td>
</tr>
</tbody>
</table><small>Reference on this page to any specific open source, or
commercial product, project, process, or service, or the use of any trade,
firm or corporation name is for the information and convenience of the
public, and does not constitute endorsement, recommendation, or favoring by
any libIIO developer. If you want to add your project to this doc, please
send a <a href=
"https://github.com/analogdevicesinc/libiio/tree/master/doc/html">pull
request</a></small>
</section>
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<h3 id="about">Contributors</h3>
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<p><img src="./img/ADI_Logo_AWP.png" style=
"height: 75px; padding: 20px 25px 20px 20px; float: left;" alt=
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<a href="https://www.nasdaq.com/symbol/adi">ADI</a>), a leading global
high-performance analog technology company dedicated to solving the
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