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!Notes
|-
|{{oldid|1799918006|1799918006}}
|Jul 2023
|[[BELK/BXELK_software_components#Release_notes|BELK 4.1.4]]
== Linux driver ==
It is possible to enable the gpio driver for using the <code>[https://elixir.bootlin.com/linux/v4.9/source/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt gpio-watchdog</code> interface] driver: you have to enable the kernel driver <code>CONFIG_GPIO_WATCHDOG=y</code> and then configure the MIO 15 pin in the device tree, for example:
<pre class="workstation-terminal">
=== Using the WDT via sysfs ===
<pre class="workstation-terminal">
</pre>
In this example, its it is worth to remember remembering that the MIO pins (BANK 500) are available starting from <code>gpio906</code> (corresponding to MIO00), so:
* PS_MIO15_500 → MIO 15 → 906+15 → 921
It is possible to see the kernel recognizes the GPIO pin status via: