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<H2>SPI Device</H2><p>To run the Hipi Control GUI</p>
<p><code>gksudo hipi-control-gui</code></p>
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<IMG SRC="controlspidev.png" BORDER="0">
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<p>SPI devices can be accessed using a kernel device driver instead of accessing the appropriate pins directly through /dev/mem. This has the advantage that you can set up the device driver options so that access does not require root permissions.</p>
<p>This panel allows you to setup and manage the <A HREF="topic_spidev.htm">SPI Device Driver</A> settings</p>
<p>Check or uncheck the SPI Kernel Modules Loaded checkbox to load and unload the kernel drivers. To permanently skip or load the device drivers at system startup see <A HREF="topic_load_drivers_startup.htm">Loading Device Drivers</A>.</p>
<p>Access to the SPI devices can be granted to members of the group <I><B>spi</B></I>. The panel provides a simple interface that allows you toggle this option on and off using the 'Allow Group Access' checkbox and also manage group membership.</p>
<p>You can also set the buffer size used by the SPI driver if you have some special usage that requires a larger buffer than the default.</p>
<p>Changes to the 'Allow Group Access' and 'bufsiz' settings will persist across system reboots.</p>
<p>See Also : </p>
<pre>
<A HREF="topic_spidev.htm">SPI Device Driver</A>
<A HREF="topic_load_drivers_startup.htm">Loading Device Drivers</A>
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