title: modprobe: FATAL: Module industrialio-sw-device not found in directory /lib/modules/5.15.56-v8+ error while trying to modprobe a module on RPI
body: <p>I am trying the <a href="https://github.com/analogdevicesinc/libiio/blob/master/examples/dummy-iiostream.c" rel="nofollow noreferrer">dummy-iiostream.c</a> script from this <a href="https://github.com/analogdevicesinc/libiio" rel="nofollow noreferrer">repo</a>. Few commands were mentioned at beginning of the script to execute. I mentioned them below :</p>
  <ol>
  <li>sudo modprobe industrialio</li>
  <li>sudo modprobe industrialio-configfs</li>
  <li>sudo modprobe industrialio-sw-device</li>
  <li>sudo modprobe industrialio-sw-trigger</li>
  <li>sudo modprobe iio-trig-hrtimer</li>
  <li>sudo modprobe iio_dummy</li>
  </ol>
  <p>I am facing problem executing the 3rd command , here is my console output</p>
  <pre><code>rohith@raspberrypi:~ $ sudo modprobe industrialio
  rohith@raspberrypi:~ $ sudo modprobe industrialio-configfs
  rohith@raspberrypi:~ $ sudo modprobe industrialio-sw-device
  modprobe: FATAL: Module industrialio-sw-device not found in directory /lib/modules/5.15.56-v8+
  rohith@raspberrypi:~ $
  </code></pre>
  <p>How do I resolve this error? I am new to Linux any help would be greatly appreciated.
  My aim is to successfully execute all the 6 commands and run the script.</p>