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doc: Update direct ISR documentation

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Updates the direct ISR documentation to make it more clear that
direct ISR handlers should be declared using ISR_DIRECT_DECLARE().

Fixes #85683

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
This commit is contained in:
Peter Mitsis 2025-03-03 14:20:39 -08:00 • committed by Fabio Baltieri
commit c9a96477d0
1 changed files with 4 additions and 3 deletions
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7
doc/kernel/services/interrupts.rst
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@ -325,9 +325,10 @@ for some low-latency use-cases. Specifically:
potentially make a scheduling decision.
Zephyr supports so-called 'direct' interrupts, which are installed via
:c:macro:`IRQ_DIRECT_CONNECT`. These direct interrupts have some special
implementation requirements and a reduced feature set; see the definition
of :c:macro:`IRQ_DIRECT_CONNECT` for details.
:c:macro:`IRQ_DIRECT_CONNECT` and whose handlers are declared using
:c:macro:`ISR_DIRECT_DECLARE`. These direct interrupts have some special
implementation requirements and a reduced feature set; see the definitions
of :c:macro:`IRQ_DIRECT_CONNECT` and :c:macro:`ISR_DIRECT_DECLARE` for details.
The following code demonstrates a direct ISR: