irq_can_set_affinity(9)

💖 irq_can_set_affinity(9) 💖

okay so this is the Kernel API Manual entry, bestie — and it's giving kernel-internals realness. 🫶 short page, iconic energy, no cap.

🌸 NAME 🌸

irq_can_set_affinity — check if the affinity of a given irq can be set. 💅

✨ SYNOPSIS ✨

the exact signature, no edits, periodt:

int irq_can_set_affinity (unsigned int irq );

🎀 ARGUMENTS 🎀

• irq — Interrupt to check. that's the one: the interrupt you're checking, bestie. 💖

🦋 SEE ALSO 🦋

the kernel file is literally ./kernel/irq/manage.c, and the whole linked friend group is: synchronize_hardirq(9), synchronize_irq(9), irq_can_set_affinity_usr(9), irq_set_thread_affinity(9), irq_affinity_schedule_notify_work(9), irq_update_affinity_desc(9), irq_set_affinity(9), irq_force_affinity(9), irq_set_affinity_notifier(9), irq_set_vcpu_affinity(9), disable_irq_nosync(9), disable_irq(9), disable_hardirq(9), disable_nmi_nosync(9), enable_irq(9), enable_nmi(9), irq_set_irq_wake(9), irq_wake_thread(9), free_irq(9), request_threaded_irq(9), request_any_context_irq(9), request_nmi(9), irq_percpu_is_enabled(9), free_percpu_irq(9), request_percpu_irq_affinity(9), request_percpu_nmi(9), prepare_percpu_nmi(9), teardown_percpu_nmi(9), irq_get_irqchip_state(9), irq_set_irqchip_state(9), irq_has_action(9), irq_check_status_bit(9). 🌟

mwah 💋 this cutie is from ./kernel/irq, dated October 2026, and it's the irq_can_set_affinity(9) page saying byeeeee. 🎀