of_irq_to_resource(9)

🦋 of_irq_to_resource(9) 🦋

hii bestie, welcome to the Kernel API Manual — today's main character is of_irq_to_resource(9), and she is literally here to decode. no cap.

💖 NAME 💖

of_irq_to_resource — Decode a node's IRQ and return it as a resource. that's the whole vibe: IRQ in, resource out, slay.

✨ SYNOPSIS ✨

okay so the signature is literally this, character for character:

int of_irq_to_resource (struct device_node *dev , int index , struct resource *r );

🎀 ARGUMENTS 🎀

• dev — pointer to device tree node. it's giving "start here" energy, fr fr.
• index — zero-based index of the irq. yes bestie, zero-based, so the first one is 0, periodt.
• r — pointer to resource structure to return result into. this is where the result goes to live its best life.

🔥 SEE ALSO 🔥

Kernel file ./drivers/of/irq.c — and here's the friend group, all iconic:

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

mwah 💋 this page is from source/version ./drivers/of, dated October 2026. bye bestie, go decode those IRQs 💅