dpm_wait(9)

💤 dpm_wait(9) — the "bestie hold up a sec" of kernel power management 💤

okay so real talk, this is dpm_wait from the Kernel API Manual, and it is literally the "wait for a PM operation to complete" girlie. lowkey iconic. let's get into it 🫶

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✨ NAME ✨

dpm_wait — Wait for a PM operation to complete.

like, you're standing at the door of the PM operation like "girl are you done yet 💅" and this is the function that makes you actually wait for the answer. no cap.

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🌸 SYNOPSIS 🌸

void dpm_wait (struct device *dev , bool async );

that's it. that's the whole vibe. two arguments, zero returns (void, she gives nothing back, main character energy 👑).

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🎀 ARGUMENTS 🎀

• dev — Device to wait for. the actual device bestie, the one you're waiting on. the subject of the wait. her.
• async — If unset, wait only if the device's power.async_suspend flag is set.

🚨 read that one twice bestie. if async is unset, the wait is conditional — it only happens when the device's power.async_suspend flag is set. it's giving "i'll wait but only if the vibes are right". if async is set, that condition doesn't apply (that's what "if unset" means, iykyk 🙈). don't come for me, that's just what the page says.

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🦋 SEE ALSO 🦋

bestie the reading list is long and honestly she ate. the kernel file lives at ./drivers/base/power/main.c, and then we've got, in this exact order:

pm_hibernate_is_recovering(9), device_pm_sleep_init(9), device_pm_lock(9), device_pm_unlock(9), device_pm_add(9), device_pm_remove(9), device_pm_move_before(9), device_pm_move_after(9), device_pm_move_last(9), pm_op(9), pm_late_early_op(9), pm_noirq_op(9), dpm_watchdog_handler(9), dpm_watchdog_set(9), dpm_watchdog_clear(9), dev_pm_skip_resume(9), device_resume_noirq(9), dpm_resume_noirq(9), device_resume_early(9), dpm_resume_early(9), dpm_resume_start(9), device_resume(9), dpm_resume(9), device_complete(9), dpm_complete(9), dpm_resume_end(9), resume_event(9), device_suspend_noirq(9), dpm_suspend_noirq(9), device_suspend_late(9), dpm_suspend_late(9), dpm_suspend_end(9), legacy_suspend(9), device_suspend(9), dpm_suspend(9), device_prepare(9), dpm_prepare(9), dpm_suspend_start(9), device_pm_wait_for_dev(9), dpm_for_each_dev(9)

like. forty of them. she's connected, she knows everyone, the whole suspend/resume friend group 💖✨

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that's the whole page, bestie — go forth and wait responsibly 🧚💜

🌈 cute sign-off: this iconic little number comes to you from ./drivers/base/power, dated October 2026, and yes, the manual name is dpm_wait(9). mwah 💋🎀