handle_fasteoi_irq(9)

💅 handle_fasteoi_irq(9) 💅

okay so bestie, welcome to the Kernel API Manual page for handle_fasteoi_irq(9) — and it is literally giving transparent-controller main character energy. 🫶

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💖 NAME 💖

handle_fasteoi_irq — irq handler for transparent controllers, periodt.

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✨ SYNOPSIS ✨

void handle_fasteoi_irq (struct irq_desc *desc );

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🫶 ARGUMENTS 🫶

• desc — the interrupt description structure for this irq 💖

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🌸 DESCRIPTION 🌸

Okay so here’s the whole vibe: only a single callback will be issued to the chip — an ->eoi call when the interrupt has been serviced. That’s it, that’s the moment. 👑

This enables support for modern forms of interrupt handlers, which handle the flow details in hardware, transparently. lowkey iconic, no cap. ✨

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👑 SEE ALSO 👑

Kernel file ./kernel/irq/chip.c is right there being its usual iconic self, and the whole squad is:

• irq_set_chip(9)
• irq_set_irq_type(9)
• irq_set_handler_data(9)
• irq_set_msi_desc_off(9)
• irq_set_msi_desc(9)
• irq_set_chip_data(9)
• irq_disable(9)
• handle_nested_irq(9)
• handle_simple_irq(9)
• handle_untracked_irq(9)
• handle_level_irq(9)
• handle_fasteoi_nmi(9)
• handle_edge_irq(9)
• handle_percpu_irq(9)
• handle_percpu_devid_irq(9)
• irq_cpu_online(9)
• irq_cpu_offline(9)
• handle_fasteoi_ack_irq(9)
• handle_fasteoi_mask_irq(9)
• irq_chip_set_parent_state(9)
• irq_chip_get_parent_state(9)
• irq_chip_shutdown_parent(9)
• irq_chip_startup_parent(9)
• irq_chip_enable_parent(9)
• irq_chip_disable_parent(9)
• irq_chip_ack_parent(9)
• irq_chip_mask_parent(9)
• irq_chip_mask_ack_parent(9)
• irq_chip_unmask_parent(9)
• irq_chip_eoi_parent(9)
• irq_chip_set_affinity_parent(9)
• irq_chip_set_type_parent(9)
• irq_chip_retrigger_hierarchy(9)
• irq_chip_set_vcpu_affinity_parent(9)
• irq_chip_set_wake_parent(9)
• irq_chip_request_resources_parent(9)
• irq_chip_release_resources_parent(9)
• irq_chip_compose_msi_msg(9)
• irq_chip_pm_get(9)
• irq_chip_pm_put(9)

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a lil sign-off, bestie: from ./kernel/irq, October 2026, and this has been the handle_fasteoi_irq(9) page from the Kernel API Manual — slay 💅