Bureaucrats, dave_user, Administrators
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→Requirements
*The Linux kernel must support [https://www.kernel.org/doc/Documentation/spi/spidev spidev]
*The device file must have the permissions as shown in [[#Managing the device connection|this section]].
*The device tree must be modified in order to instantiate the SPI bus to be accessed: it is enough to enable the <code>escpi4</code> peripheral into SBCX device tree
<pre>
&ecspi4 {
status = "okay";
};
</pre>
