user_irq_claim() function

Claim ownership of a user IRQ on the calling core User IRQs starting from FIRST_USER_IRQ are not connected to any hardware, but can be triggered by irq_set_pending. This method explicitly claims ownership of a user IRQ, so other code can know it is being used.

Syntax

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Summary

Declaration

Definition

from irq.h:421

void user_irq_claim(uint irq_num);

Implemented in irq.c:675

Arguments

Argument

Description

irq_num

the user IRQ to claim

Notes

User IRQs are a core local feature; they cannot be used to communicate between cores. Therefore all functions dealing with Uer IRQs affect only the calling core

Examples

References

from examples

user_irq_claim() function

Syntax

Arguments

Notes

Examples

References

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