irq_wake_thread(9)

💖 irq_wake_thread(9) 💖

okay so this is a page from the Kernel API Manual bestie, and it's lowkey one of the shortest ones you'll ever read, which honestly? iconic. it does exactly one thing and it does it slayfully. let's get into it ✨

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🌸 NAME 🌸

irq_wake_thread — wake the irq thread for the action identified by dev_id

that's it. that's the whole mission. she wakes up a thread. main character energy fr fr 💅

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🦋 SYNOPSIS 🦋

void irq_wake_thread (unsigned int irq , void *dev_id );

look at that signature. clean. no notes. she returns void because she's not here to give you answers, she's here to WAKE. THINGS. UP. 😭🔥

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🎀 ARGUMENTS 🎀

• irq — Interrupt line. bestie this is literally the interrupt line you're targeting, okay, that's the vibe 🫶
• dev_id — Device identity for which the thread should be woken. this is the little name tag that tells everyone which device's thread we're waking up. no cap, it matters 🌟

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👑 SEE ALSO 👑

Kernel file ./kernel/irq/manage.c — and also, because she has a whole friend group, go say hi to:

• synchronize_hardirq(9)
• synchronize_irq(9)
• irq_can_set_affinity(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)
• 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)

like, that's a squad. irq_wake_thread is the quiet one in the group chat who only texts when it's important, and when she does? everyone shows up 💀💖

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💡 friendly reminder: this page lives in ./kernel/irq and it's dated October 2026. don't @ me about the future, she's booked and busy 🧚✨

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that's the whole page babes, go wake some threads and drink some water 🍓🌸