[RFC PATCH 0/8] Add configurable block device LED triggers

Pavel Machek pavel at ucw.cz
Thu Jul 29 04:54:13 EDT 2021


> This patch series adds configurable (i.e. user-defined) block device LED
> triggers.
> * Triggers can be created, listed, and deleted via sysfs block class
>   attributes (led_trigger_{new,list,del}).
> * Once created, block device LED triggers are associated with LEDs just
>   like any other LED trigger (via /sys/class/leds/${LED}/trigger).
> * Each block device gains a new device attribute (led_trigger) that can
>   be used to associate the device with a trigger or clear its
>   association.

That's not how this is normally done.

We normally have a trigger ("block device activity") which can then
expose parameters ("I watch for read" and "I monitor sda1").

Is there a reason normal solution can not be used?

Best regards,
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