irq_get_next_irq(9)

💅 irq_get_next_irq(9) — the Kernel API Manual, bestie edition 🎀

okay so you're in the kernel API manual, section 9, and today's main character is irq_get_next_irq ✨

---

🌸 NAME 🌸

irq_get_next_irq — gets you the next allocated irq number, no cap 🧚

---

✨ SYNOPSIS ✨

unsigned int irq_get_next_irq (unsigned int offset );

---

🦋 ARGUMENTS 🦋

• offset — literally just where to start the search. that's it. that's the whole vibe. 💫

---

💖 DESCRIPTION 💖

okay so picture this: you hand it an offset, and it hands you back the next irq number after that offset.

and if there's nothing there? if the cupboard is empty, bestie? 😭 it just returns total_nr_irqs instead. periodt.

---

🔥 SEE ALSO 🔥

this is the friend group, iykyk 👑 — the kernel file ./kernel/irq/irqdesc.c, plus:

• irq_get_nr_irqs(9)
• irq_set_nr_irqs(9)
• generic_handle_irq(9)
• generic_handle_irq_safe(9)
• generic_handle_domain_irq(9)
• generic_handle_domain_nmi(9)
• generic_handle_demux_domain_irq(9)
• irq_free_descs(9)
• __irq_alloc_descs(9)
• kstat_irqs_cpu(9)
• kstat_irqs_usr(9)

---

ngl the whole thing lives in ./kernel/irq and it's giving icon energy — go read the rest, fr fr 💅

---

and that's the page, bestie 🫶 it ate, no crumbs left. source filing lives in ./kernel/irq, dated October 2026, and it's the irq_get_next_irq(9) page — slay, bye 💜🌸