STRUCT PWRSEQ_UNIT(9)

💖 struct pwrseq_unit(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this one is literally about struct pwrseq_unit(9) — the private power-sequence unit data, no cap. it's giving "backstage pass to the sequencing machinery" energy 🎀

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✨ NAME ✨

struct pwrseq_unit — Private power-sequence unit data. that's it, that's the whole vibe 🫶 it's the little internal unit that holds its own stuff for the power sequencer, iykyk.

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🌸 SYNOPSIS 🌸

here's the whole struct, copied exactly so you can eyeball it, bestie:

struct pwrseq_unit {
    struct kref ref;
    const char *name;
    struct list_head list;
    struct list_head deps;
    pwrseq_power_state_func enable;
    pwrseq_power_state_func disable;
    unsigned int enable_count;
 };

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🦋 Members 🦋

okay so let's go member by member, no skipping 💅

• ref — Reference count for this object. the moment it drops to 0, the object is destroyed. so like, bestie, please keep track of your refs 😭 when it hits zero it's over, periodt.
• name — Name of this target. just the label so you know who's who 👑
• list — Link to siblings on the list of all units of a single sequencer. it's how all the units of one sequencer hold hands in a list 🫶
• deps — List of units on which this unit depends. the "i need these girlies first" list 🌈
• enable — Callback running the part of the power-on sequence provided by this unit. it does this unit's little slice of the power-on choreography ✨
• disable — Callback running the part of the power-off sequence provided by this unit. same energy but for power-off, and yes it coordinates the off-sequence 💀
• enable_count — Current number of users that enabled this unit. heads up, those users may be the consumer of the power sequencer or other units that depend on this one. so it's a whole ecosystem fr fr 🔥

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🎀 SEE ALSO 🎀

go read these next, bestie, they're all connected:

• Kernel file ./drivers/power/sequencing/core.c
• struct pwrseq_unit_dep(9)
• struct pwrseq_target(9)
• struct pwrseq_device(9)
• struct pwrseq_desc(9)
• pwrseq_device_register(9)
• pwrseq_device_unregister(9)
• devm_pwrseq_device_register(9)
• pwrseq_device_get_drvdata(9)
• pwrseq_get(9)
• pwrseq_put(9)
• devm_pwrseq_get(9)
• pwrseq_enable(9)
• pwrseq_disable(9)
• pwrseq_to_device(9)

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ngl this page came from ./drivers/power/sequencing and it's dated October 2026 — so yeah, that's the source, the version vibe, and the date all in one cute lil sign-off 💜 mwah, go forth and sequence your power, icon 🧚‍♀️💖