of_irq_init(9)

💖 of_irq_init(9) — Kernel API Manual 💖

okay so bestie, welcome to the Kernel API Manual page for of_irq_init(9) — it's giving device-tree interrupt-controller realness, and we're gonna read it together like the main characters we are. ✨

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🎀 NAME 🎀

of_irq_init — Scan and init matching interrupt controllers in DT 💅

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🦋 SYNOPSIS 🦋

void of_irq_init (const struct of_device_id *matches );

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🌸 ARGUMENTS 🌸

• matches — a 0 terminated array of nodes to match and init function to call. literally the whole lookup-table vibe, no cap. 🫶

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✨ DESCRIPTION ✨

So like, this function scans the device tree for matching interrupt controller nodes, and calls their initialization functions in order with parents first. 👑

parents first is the moment, okay? it's giving hierarchy-respecting icon behavior. 🌈

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🌟 SEE ALSO 🌟

Kernel file: ./drivers/of/irq.c — go look, bestie, it's right there. 💖

• irq_of_parse_and_map(9)
• of_irq_find_parent(9)
• of_irq_parse_raw(9)
• of_irq_parse_one(9)
• of_irq_to_resource(9)
• of_irq_get(9)
• of_irq_get_byname(9)
• of_irq_count(9)
• of_irq_to_resource_table(9)
• of_msi_xlate(9)
• of_msi_map_get_device_domain(9)
• of_msi_get_domain(9)
• of_msi_configure(9)

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mwah 💋 this whole page comes from ./drivers/of, dated October 2026, and it's literally called of_irq_init(9) — periodt. 🫶🎀