https://www.mediawiki.compulab.com/w/index.php?action=history&feed=atom&title=Transclusion%3A_Debian%3A_GPIO 2026-04-17T18:39:20Z Revision history for this page on the wiki MediaWiki 1.31.0 https://www.mediawiki.compulab.com/w/index.php?title=Transclusion:_Debian:_GPIO&diff=3257&oldid=prev 2017-04-23T08:31:33Z

<p>‎<span dir="auto"><span class="autocomment">Example</span></span></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 08:31, 23 April 2017</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The following example demonstrates how to configure GPIO 140 as output and set value to high:</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The following example demonstrates how to configure GPIO 140 as output and set value to high:</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;pre&gt;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;pre&gt;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># echo 140 &gt; /sys/class/gpio/export</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">root@cl-rootfs:~</ins># echo 140 &gt; /sys/class/gpio/export</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># echo out &gt; /sys/class/gpio/gpio140/direction</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">root@cl-rootfs:~</ins># echo out &gt; /sys/class/gpio/gpio140/direction</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># echo 1 &gt; /sys/class/gpio/gpio140/value</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">root@cl-rootfs:~</ins># echo 1 &gt; /sys/class/gpio/gpio140/value</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Note|The above example assumes that the pinmux configuration of the corresponding pin is set to GPIO mode and the GPIO 140 is '''not''' requested in the Linux kernel.}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Note|The above example assumes that the pinmux configuration of the corresponding pin is set to GPIO mode and the GPIO 140 is '''not''' requested in the Linux kernel.}}</div></td></tr> </table>

Ilya https://www.mediawiki.compulab.com/w/index.php?title=Transclusion:_Debian:_GPIO&diff=3154&oldid=prev 2017-02-15T10:52:27Z

<p>New page: Linux provides simple and convenient GPIO access via {{filename|sysfs}} interface. A GPIO should be exported using {{filename|/sys/class/gpio/export}}. After the GPIO is exported it is pos...</p> <p><b>New page</b></p><div>Linux provides simple and convenient GPIO access via {{filename|sysfs}} interface. A GPIO should be exported using {{filename|/sys/class/gpio/export}}.<br /> After the GPIO is exported it is possible to change its direction and value using {{filename|/sys/class/gpio/gpioX/direction}} and {{filename|/sys/class/gpio/gpioX/value}} attributes.<br /> <br /> ==== Example ====<br /> The following example demonstrates how to configure GPIO 140 as output and set value to high:<br /> &lt;pre&gt;<br /> # echo 140 &gt; /sys/class/gpio/export<br /> # echo out &gt; /sys/class/gpio/gpio140/direction<br /> # echo 1 &gt; /sys/class/gpio/gpio140/value<br /> &lt;/pre&gt;<br /> {{Note|The above example assumes that the pinmux configuration of the corresponding pin is set to GPIO mode and the GPIO 140 is '''not''' requested in the Linux kernel.}}</div>

Ilya