wakeup_sources_walk_start(9)

💤 wakeup_sources_walk_start(9) — a Kernel API Manual moment ✨

okay bestie, so we're in the Kernel API Manual today and this one is genuinely so cute and tiny. it's a lil starter function. a beginning-of-the-walk icon. let's get into it 🎀

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🌸 NAME 🌸

wakeup_sources_walk_start — begin a walk on wakeup source list. that's it. that's the whole gig. she's the opening credits, not the movie 💅

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✨ SYNOPSIS ✨

struct wakeup_source * wakeup_sources_walk_start (void );

look at her. no arguments, no drama, just vibes and a pointer 🫶

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🧚 ARGUMENTS 🧚

• void — no arguments. literally none. she takes nothing from you, she simply is 😌

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🔥 DESCRIPTION 🔥

so what does she actually do? she returns the first object of the list of wakeup sources. that's the whole thing. she hands you the head of the list and goes 🫡

⚠️ okay but listen, this part is important and not in a fun way: to be safe, the wakeup sources list needs to be locked by calling wakeup_source_read_lock for this. no cap. don't be out here walking an unlocked list, that's giving chaos energy and not the cute kind 💀

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👑 SEE ALSO 👑

everything else in the wakeup source cinematic universe, all together, all iconic:

• wakeup_source_create(9)
• wakeup_source_destroy(9)
• wakeup_source_add(9)
• wakeup_source_remove(9)
• wakeup_source_register(9)
• wakeup_source_unregister(9)
• wakeup_sources_read_lock(9)
• wakeup_sources_read_unlock(9)
• wakeup_sources_walk_next(9)
• device_wakeup_attach(9)
• device_wakeup_enable(9)
• device_wakeup_attach_irq(9)
• device_wakeup_detach_irq(9)
• device_wakeup_arm_wake_irqs(9)
• device_wakeup_disarm_wake_irqs(9)
• device_wakeup_detach(9)
• device_wakeup_disable(9)
• device_set_wakeup_capable(9)
• device_set_wakeup_enable(9)
• wakeup_source_not_usable(9)
• wakeup_source_activate(9)
• wakeup_source_report_event(9)
• __pm_stay_awake(9)
• pm_stay_awake(9)
• wakeup_source_deactivate(9)
• __pm_relax(9)
• pm_relax(9)
• pm_wakeup_timer_fn(9)
• pm_wakeup_ws_event(9)
• pm_wakeup_dev_event(9)
• pm_wakeup_pending(9)
• pm_get_wakeup_count(9)
• pm_save_wakeup_count(9)
• pm_wakep_autosleep_enabled(9)
• print_wakeup_source_stats(9)
• wakeup_sources_stats_seq_show(9)
• bpf_wakeup_sources_read_lock(9)
• bpf_wakeup_sources_read_unlock(9)
• bpf_wakeup_sources_get_head(9)

and the kernel file she lives in, in case you wanna go visit: ./drivers/base/power/wakeup.c 🦋

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mwah 💖 that's the whole page. sourced straight from ./drivers/base/power, dated October 2026 — go drink some water and lock your lists bestie, ily 🍓